v1.2.0

Fix ident on github

Fix ident github

Fix ident on github

.coveralls.yml

@@ -0,0 +1 @@
+repo_token: AelGMv47LJ85e3KF1PhYBsjyduSjDmP0h

.gitignore

@@ -3,3 +3,5 @@
 node_modules/
 build/
 .DS_Store/
+/coverage
+coverage.json

.jshintrc

@@ -0,0 +1,48 @@
+{
+    "bitwise": false,     // Prohibit bitwise operators (&, |, ^, etc.).
+    "browser": true,      // Standard browser globals e.g. `window`, `document`.
+    "camelcase": false,   // Permit only camelcase for `var` and `object indexes`.
+    "curly": true,        // Require {} for every new block or scope.
+    "devel": false,       // Allow development statements e.g. `console.log();`.
+    "eqeqeq": true,       // Require triple equals i.e. `===`.
+    "esnext": true,       // Allow ES.next specific features such as `const` and `let`.
+    "freeze": true,       // Forbid overwriting prototypes of native objects such as Array, Date and so on.
+    "immed": true,        // Require immediate invocations to be wrapped in parens e.g. `( function(){}() );`
+    "indent": 2,          // Specify indentation spacing
+    "latedef": true,      // Prohibit variable use before definition.
+    "newcap": false,      // Require capitalization of all constructor functions e.g. `new F()`.
+    "noarg": true,        // Prohibit use of `arguments.caller` and `arguments.callee`.
+    "node": true,         // Enable globals available when code is running inside of the NodeJS runtime environment.
+    "noempty": true,      // Prohibit use of empty blocks.
+    "nonew": true,        // Prohibits the use of constructor functions for side-effects
+    "quotmark": "single", // Define quotes to string values.
+    "regexp": true,       // Prohibit `.` and `[^...]` in regular expressions.
+    "smarttabs": false,   // Supress warnings about mixed tabs and spaces
+    "strict": true,       // Require `use strict` pragma in every file.
+    "trailing": true,     // Prohibit trailing whitespaces.
+    "undef": true,        // Require all non-global variables be declared before they are used.
+    "unused": true,       // Warn unused variables.
+
+    "maxparams": 4,       // Maximum number of parameters for a function
+    "maxstatements": 15,  // Maximum number of statements in a function
+    "maxcomplexity": 10,  // Cyclomatic complexity (http://en.wikipedia.org/wiki/Cyclomatic_complexity)
+    "maxdepth": 4,        // Maximum depth of nested control structures
+    "maxlen": 120,        // Maximum number of cols in a line
+    "multistr": true,     // Allow use of multiline EOL escaping
+    "experimental": ["asyncawait", "asyncreqawait"],
+
+    "predef": [ // Extra globals.
+        "after",
+        "afterEach",
+        "before",
+        "beforeEach",
+        "define",
+        "describe",
+        "exports",
+        "it",
+        "web3",
+        "artifacts",
+        "contract",
+        "assert"
+    ]
+}

.solcover.js

@@ -0,0 +1,5 @@
+module.exports = {
+    norpc: true,
+    testCommand: 'node --max-old-space-size=4096 ../node_modules/.bin/truffle test --network coverage',
+    skipFiles: ['lifecycle/Migrations.sol']
+}

.soliumignore

@@ -0,0 +1 @@
+node_modules

.soliumrc.json

@@ -0,0 +1,22 @@
+{
+  "custom-rules-filename": null,
+  "rules": {
+    "imports-on-top": true,
+    "variable-declarations": true,
+    "array-declarations": true,
+    "operator-whitespace": true,
+    "lbrace": true,
+    "mixedcase": false,
+    "camelcase": true,
+    "uppercase": true,
+    "no-with": true,
+    "no-empty-blocks": true,
+    "no-unused-vars": true,
+    "double-quotes": true,
+    "blank-lines": true,
+    "indentation": true,
+    "whitespace": true,
+    "deprecated-suicide": true,
+    "pragma-on-top": true
+  }
+}

.travis.yml

@@ -1,12 +1,12 @@
 dist: trusty
-sudo: false
+sudo: required
 group: beta
 language: node_js
 node_js:
   - "6"
-before_install:
-  - npm i -g ethereumjs-testrpc
-  - npm i -g truffle
+cache:
+  yarn: true
 script:
-  - testrpc&
-  - npm test
+  - yarn test
+after_script:
+  - yarn run coveralls

CONTRIBUTING.md

@@ -102,4 +102,6 @@ Main contributors will review your code and possibly ask for changes before your
 If you have any questions feel free to post them to
 [github.com/OpenZeppelin/zeppelin-solidity/issues](https://github.com/OpenZeppelin/zeppelin-solidity/issues).
 
+Finally, if you're looking to collaborate and want to find easy tasks to start, [look at the issues we marked as easy](https://github.com/OpenZeppelin/zeppelin-solidity/labels/easy).
+
 Thanks for your time and code!

README.md

@@ -1,10 +1,11 @@
 # Zeppelin Solidity
 [![NPM Package](https://img.shields.io/npm/v/zeppelin-solidity.svg?style=flat-square)](https://www.npmjs.org/package/zeppelin-solidity)
 [![Build Status](https://img.shields.io/travis/OpenZeppelin/zeppelin-solidity.svg?branch=master&style=flat-square)](https://travis-ci.org/OpenZeppelin/zeppelin-solidity)
+[![Coverage Status](https://coveralls.io/repos/github/OpenZeppelin/zeppelin-solidity/badge.svg?branch=coveralls)](https://coveralls.io/github/OpenZeppelin/zeppelin-solidity?branch=coveralls)
 
-Zeppelin is a library for writing secure [Smart Contracts](https://en.wikipedia.org/wiki/Smart_contract) on Ethereum.
+OpenZeppelin is a library for writing secure [Smart Contracts](https://en.wikipedia.org/wiki/Smart_contract) on Ethereum.
 
-With Zeppelin, you can build distributed applications, protocols and organizations:
+With OpenZeppelin, you can build distributed applications, protocols and organizations:
 - using common contract security patterns (See [Onward with Ethereum Smart Contract Security](https://medium.com/bitcorps-blog/onward-with-ethereum-smart-contract-security-97a827e47702#.y3kvdetbz))
 - in the [Solidity language](http://solidity.readthedocs.io/en/develop/).
 
@@ -12,66 +13,55 @@ With Zeppelin, you can build distributed applications, protocols and organizatio
 
 ## Getting Started
 
-Zeppelin integrates with [Truffle](https://github.com/ConsenSys/truffle), an Ethereum development environment. Please install Truffle and initialize your project with `truffle init`.
+OpenZeppelin integrates with [Truffle](https://github.com/ConsenSys/truffle), an Ethereum development environment. Please install Truffle and initialize your project with `truffle init`.
+
 ```sh
-npm install -g truffle
+npm install -g truffle@beta
 mkdir myproject && cd myproject
 truffle init
 ```
 
-To install the Zeppelin library, run:
+To install the OpenZeppelin library, run:
 ```sh
-npm i zeppelin-solidity
+npm install zeppelin-solidity
+
+# If you are using yarn, add dependency like this -
+yarn add zeppelin-solidity
 ```
 
-After that, you'll get all the library's contracts in the `contracts/zeppelin` folder. You can use the contracts in the library like so:
+After that, you'll get all the library's contracts in the `node_modules/zeppelin-solidity/contracts` folder. You can use the contracts in the library like so:
 
 ```js
-import "./zeppelin/Ownable.sol";
+import 'zeppelin-solidity/contracts/ownership/Ownable.sol';
 
 contract MyContract is Ownable {
   ...
 }
 ```
 
-> NOTE: The current distribution channel is npm, which is not ideal. [We're looking into providing a better tool for code distribution](https://github.com/OpenZeppelin/zeppelin-solidity/issues/13), and ideas are welcome.
-
-#### Truffle Beta Support
-We also support Truffle Beta npm integration. If you're using Truffle Beta, the contracts in `node_modules` will be enough, so feel free to delete the copies at your `contracts` folder. If you're using Truffle Beta, you can use Zeppelin contracts like so:
-
-```js
-import "zeppelin-solidity/contracts/Ownable.sol";
-
-contract MyContract is Ownable {
-  ...
-}
-```
-
-For more info see [the Truffle Beta package management tutorial](http://truffleframework.com/tutorials/package-management).
-
 
 ## Security
-Zeppelin is meant to provide secure, tested and community-audited code, but please use common sense when doing anything that deals with real money! We take no responsibility for your implementation decisions and any security problem you might experience.
+OpenZeppelin is meant to provide secure, tested and community-audited code, but please use common sense when doing anything that deals with real money! We take no responsibility for your implementation decisions and any security problem you might experience.
 
 If you find a security issue, please email [security@openzeppelin.org](mailto:security@openzeppelin.org).
 
 ## Developer Resources
 
-Building a distributed application, protocol or organization with Zeppelin?
+Building a distributed application, protocol or organization with OpenZeppelin?
 
 - Read documentation: http://zeppelin-solidity.readthedocs.io/en/latest/
 
-- Ask for help and follow progress at: https://zeppelin-slackin.herokuapp.com/
+- Ask for help and follow progress at: https://slack.openzeppelin.org/
 
-Interested in contributing to Zeppelin?
+Interested in contributing to OpenZeppelin?
 
 - Framework proposal and roadmap: https://medium.com/zeppelin-blog/zeppelin-framework-proposal-and-development-roadmap-fdfa9a3a32ab#.iain47pak
 - Issue tracker: https://github.com/OpenZeppelin/zeppelin-solidity/issues
 - Contribution guidelines: https://github.com/OpenZeppelin/zeppelin-solidity/blob/master/CONTRIBUTING.md
 
-## Collaborating organizations and audits by Zeppelin
+## Collaborating organizations and audits by OpenZeppelin
 - [Golem](https://golem.network/)
-- [Mediachain](https://golem.network/)
+- [Mediachain](http://www.mediachain.io/)
 - [Truffle](http://truffleframework.com/)
 - [Firstblood](http://firstblood.io/)
 - [Rootstock](http://www.rsk.co/)
@@ -81,6 +71,8 @@ Interested in contributing to Zeppelin?
 - [DemocracyEarth](http://democracy.earth/)
 - [Signatura](https://signatura.co/)
 - [Ether.camp](http://www.ether.camp/)
+- [Aragon](https://aragon.one/)
+- [Wings](https://wings.ai/)
 
 among others...
 

audit/ZeppelinAudit.md

@@ -0,0 +1,290 @@
+# OpenZeppelin Audit
+
+March, 2017
+Authored by Dennis Peterson and Peter Vessenes
+
+# Introduction
+
+Zeppelin requested that New Alchemy perform an audit of the contracts in their OpenZeppelin library. The OpenZeppelin contracts are a set of contracts intended to be a safe building block for a variety of uses by parties that may not be as sophisticated as the OpenZeppelin team. It is a design goal that the contracts be deployable safely and "as-is". 
+
+The contracts are hosted at:
+
+https://github.com/OpenZeppelin/zeppelin-solidity
+
+All the contracts in the "contracts" folder are in scope.
+
+The git commit hash we evaluated is:
+9c5975a706b076b7000e8179f8101e0c61024c87
+
+# Disclaimer
+
+The audit makes no statements or warrantees about utility of the code, safety of the code, suitability of the business model, regulatory regime for the business model, or any other statements about fitness of the contracts to purpose, or their bugfree status. The audit documentation is for discussion purposes only.
+
+# Executive Summary
+
+Overall the OpenZeppelin codebase is of reasonably high quality -- it is clean, modular and follows best practices throughout. 
+
+It is still in flux as a codebase, and needs better documentation per file as to expected behavior and future plans. It probably needs more comprehensive and aggressive tests written by people less nice than the current OpenZeppelin team. 
+
+We identified two critical errors and one moderate issue, and would not recommend this commit hash for public use until these bugs are remedied.
+
+The repository includes a set of Truffle unit tests, a requirement and best practice for smart contracts like these; we recommend these be bulked up.
+
+# Discussion
+
+## Big Picture: Is This A Worthwhile Project?
+
+As soon as a developer touches OpenZeppelin contracts, they will modify something, leaving them in an un-audited state. We do not recommend developers deploy any unaudited code to the Blockchain if it will handle money, information or other things of value. 
+
+> "In accordance with Unix philosophy, Perl gives you enough rope to hang yourself"
+> --Larry Wall
+
+We think this is an incredibly worthwhile project -- aided by the high code quality. Creating a framework that can be easily extended helps increase the average code quality on the Blockchain by charting a course for developers and encouraging containment of modifications to certain sections. 
+
+> "Rust: The language that makes you take the safety off before shooting yourself in the foot"
+> -- (@mbrubeck)
+
+We think much more could be done here, and recommend the OpenZeppelin team keep at this and keep focusing on the design goal of removing rope and adding safety.
+
+## Solidity Version Updates Recommended
+
+Most of the code uses Solidity 0.4.11, but some files under `Ownership` are marked 0.4.0. These should be updated.
+
+Solidity 0.4.10 will add several features which could be useful in these contracts:
+
+- `assert(condition)`, which throws if the condition is false
+
+- `revert()`, which rolls back without consuming all remaining gas.
+
+- `address.transfer(value)`, which is like `send` but automatically propagates exceptions, and supports `.gas()`. See https://github.com/ethereum/solidity/issues/610 for more on this.
+
+## Error Handling: Throw vs Return False
+Solidity standards allow two ways to handle an error -- either calling `throw` or returning `false`. Both have benefits. In particular, a `throw` guarantees a complete wipe of the call stack (up to the preceding external call), whereas `false` allows a function to continue.
+
+In general we prefer `throw` in our code audits, because it is simpler -- it's less for an engineer to keep track of. Returning `false` and using logic to check results can quickly become a poorly-tracked state machine, and this sort of complexity can cause errors.
+
+In the OpenZeppelin contracts, both styles are used in different parts of the codebase. `SimpleToken` transfers throw upon failure, while the full ERC20 token returns `false`. Some modifiers `throw`, others just wrap the function body in a conditional, effectively allowing the function to return false if the condition is not met.
+
+We don't love this, and would usually recommend you stick with one style or the other throughout the codebase. 
+
+In at least one case, these different techniques are combined cleverly (see the Multisig comments, line 65). As a set of contracts intended for general use, we recommend you either strive for more consistency or document explicit design criteria that govern which techniques are used where.
+
+Note that it may be impossible to use either one in all situations. For example, SafeMath functions pretty much have to throw upon failure, but ERC20 specifies returning booleans. Therefore we make no particular recommendations, but simply point out inconsistencies to consider.
+
+# Critical Issues
+
+## Stuck Ether in Crowdsale contract
+CrowdsaleToken.sol has no provision for withdrawing the raised ether. We *strongly* recommend a standard `withdraw` function be added. There is no scenario in which someone should deploy this contract as is, whether for testing or live.
+
+## Recursive Call in MultisigWallet
+Line 45 of `MultisigWallet.sol` checks if the amount being sent by `execute` is under a daily limit. 
+
+This function can only be called by the "Owner". As a first angle of attack, it's worth asking what will happen if the multisig wallet owners reset the daily limit by approving a call to `resetSpentToday`. 
+
+If a chain of calls can be constructed in which the owner confirms the `resetSpentToday` function and then withdraws through `execute` in a recursive call, the contract can be drained. In fact, this could be done without a recursive call, just through repeated `execute` calls alternating with the `confirm` calls.
+
+We are still working through the confirmation protocol in `Shareable.sol`, but we are not convinced that this is impossible, in fact it looks possible. The flexibility any shared owner has in being able to revoke confirmation later is another worrisome angle of approach even if some simple patches are included. 
+
+This bug has a number of causes that need to be addressed:
+
+1. `resetSpentToday` and `confirm` together do not limit the days on which the function can be called or (it appears) the number of times it can be called. 
+1. Once a call has been confirmed and `execute`d it appears that it can be re-executed. This is not good. 
+3. `confirmandCheck` doesn't seem to have logic about whether or not the function in question has been called. 
+4. Even if it did, `revoke` would need updates and logic to deal with revocation requests after a function call had been completed.
+
+We do not recommend using the MultisigWallet until these issues are fixed.
+
+# Moderate to Minor Issues
+
+## PullPayment
+PullPayment.sol needs some work. It has no explicit provision for cancelling a payment. This would be desirable in a number of scenarios; consider a payee losing their wallet, or giving a griefing address, or just an address that requires more than the default gas offered by `send`. 
+
+`asyncSend` has no overflow checking. This is a bad plan. We recommend overflow and underflow checking at the layer closest to the data manipulation. 
+
+`asyncSend` allows more balance to be queued up for sending than the contract holds. This is probably a bad idea, or at the very least should be called something different. If the intent is to allow this, it should have provisions for dealing with race conditions between competing `withdrawPayments` calls.
+
+It would be nice to see how many payments are pending. This would imply a bit of a rewrite; we recommend this contract get some design time, and that developers don't rely on it in its current state.
+
+## Shareable Contract
+
+We do not believe the `Shareable.sol` contract is ready for primetime. It is missing functions, and as written may be vulnerable to a reordering attack -- an attack in which a miner or other party "racing" with a smart contract participant inserts their own information into a list or mapping. 
+
+The confirmation and revocation code needs to be looked over with a very careful eye imagining extraordinarily bad behavior by shared owners before this contract can be called safe.
+
+No sanity checks on the initial constructor's `required` argument are worrisome as well.
+
+# Line by Line Comments
+
+## Lifecycle
+
+### Killable
+
+Very simple, allows owner to call selfdestruct, sending funds to owner. No issues. However, note that `selfdestruct` should typically not be used; it is common that a developer may want to access data in a former contract, and they may not understand that `selfdestruct` limits access to the contract. We recommend better documentation about this dynamic, and an alternate function name for `kill` like `completelyDestroy` while `kill` would perhaps merely send funds to the owner.
+
+Also note that a killable function allows the owner to take funds regardless of other logic. This may be desirable or undesirable depending on the circumstances. Perhaps `Killable` should have a different name as well.
+
+### Migrations
+
+I presume that the goal of this contract is to allow and annotate a migration to a new smart contract address. We are not clear here how this would be accomplished by the code; we'd like to review with the OpenZeppelin team.
+
+### Pausable
+
+We like these pauses! Note that these allow significant griefing potential by owners, and that this might not be obvious to participants in smart contracts using the OpenZeppelin framework. We would recommend that additional sample logic be added to for instance the TokenContract showing safer use of the pause and resume functions. In particular, we would recommend a timelock after which anyone could unpause the contract. 
+
+The modifers use the pattern `if(bool){_;}`. This is fine for functions that return false upon failure, but could be problematic for functions expected to throw upon failure. See our comments above on standardizing on `throw` or `return(false)`.
+
+## Ownership
+
+### Ownable
+
+Line 19: Modifier throws if doesn't meet condition, in contrast to some other inheritable modifiers (e.g. in Pausable) that use `if(bool){_;}`.
+
+### Claimable
+
+Inherits from Ownable but the existing owner sets a pendingOwner who has to claim ownership.
+
+Line 17: Another modifier that throws.
+
+### DelayedClaimable
+
+Is there any reason to descend from Ownable directly, instead of just Claimable, which descends from Ownable? If not, descending from both just adds confusion.
+
+### Contactable
+
+Allows owner to set a public string of contract information. No issues.
+
+### Shareable
+
+This needs some work. Doesn't check if `_required <= len(_owners)` for instance, that would be a bummer. What if _required were like `MAX - 1`?
+
+I have a general concern about the difference between `owners`, `_owners`, and `owner` in `Ownable.sol`. I recommend "Owners" be renamed. In general we do not recomment single character differences in variable names, although a preceding underscore is not uncommon in Solidity code.
+
+Line 34: "this contract only has six types of events"...actually only two.
+
+Line 61: Why is `ownerIndex` keyed by addresses hashed to `uint`s? Why not use the addresses directly, so `ownerIndex` is less obscure, and so there's stronger typing?
+
+Line 62: Do not love `++i) ... owners[2+ i]`. Makes me do math, which is not what I want to do. I want to not have to do math. 
+
+There should probably be a function for adding a new operation, so the developer doesn't have to work directly with the internal data. (This would make the multisig contract even shorter.)
+
+There's a `revoke` function but not a `propose` function that we can see.
+
+Beware reordering. If `propose` allows the user to choose a bytes string for their proposal, bad things(TM) will happen as currently written.
+
+	
+### Multisig
+
+Just an interface. Note it allows changing an owner address, but not changing the number of owners. This is somewhat limiting but also simplifies implementation.
+
+## Payment
+
+### PullPayment
+
+Safe from reentrance attack since ether send is at the end, plus it uses `.send()` rather than `.call.value()`.
+
+There's an argument to be made that `.call.value()` is a better option *if* you're sure that it will be done after all state updates, since `.send` will fail if the recipient has an expensive fallback function. However, in the context of a function meant to be embedded in other contracts, it's probably better to use `.send`. One possible compromise is to add a function which allows only the owner to send ether via `.call.value`.
+
+If you don't use `call.value` you should implement a `cancel` function in case some value is pending here. 
+
+Line 14: 
+Doesn't use safeAdd. Although it appears that payout amounts can only be increased, in fact the payer could lower the payout as much as desired via overflow. Also, the payer could add a large non-overflowing amount, causing the payment to exceed the contract balance and therefore fail when withdraw is attempted.
+
+Recommendation: track the sum of non-withdrawn asyncSends, and don't allow a new one which exceeds the leftover balance. If it's ever desirable to make payments revocable, it should be done explicitly.
+
+## Tokens
+
+### ERC20
+
+Standard ERC20 interface only. 
+
+There's a security hole in the standard, reported at Edcon: `approve` does not protect against race conditions and simply replaces the current value. An approved spender could wait for the owner to call `approve` again, then attempt to spend the old limit before the new limit is applied. If successful, this attacker could successfully spend the sum of both limits.
+
+This could be fixed by either (1) including the old limit as a parameter, so the update will fail if some gets spent, or (2) using the value parameter as a delta instead of replacement value.
+
+This is not fixable while adhering to the current full ERC20 standard, though it would be possible to add a "secureApprove" function. The impact isn't extreme since at least you can only be attacked by addresses you approved. Also, users could mitigate this by always setting spending limits to zero and checking for spends, before setting the new limit.
+
+Edcon slides:
+https://drive.google.com/file/d/0ByMtMw2hul0EN3NCaVFHSFdxRzA/view
+
+### ERC20Basic
+
+Simpler interface skipping the Approve function. Note this departs from ERC20 in another way: transfer throws instead of returning false. 
+
+### BasicToken
+
+Uses `SafeSub` and `SafeMath`, so transfer `throw`s instead of returning false. This complies with ERC20Basic but not the actual ERC20 standard. 
+
+### StandardToken
+
+Implementation of full ERC20 token.
+
+Transfer() and transferFrom() use SafeMath functions, which will cause them to throw instead of returning false. Not a security issue but departs from standard.
+
+### SimpleToken
+
+Sample instantiation of StandardToken. Note that in this sample, decimals is 18 and supply only 10,000, so the supply is a small fraction of a single nominal token.
+
+### CrowdsaleToken
+
+StandardToken which mints tokens at a fixed price when sent ether.
+
+There's no provision for owner withdrawing the ether. As a sample for crowdsales it should be Ownable and allow the owner to withdraw ether, rather than stranding the ether in the contract.
+
+Note: an alternative pattern is a mint() function which is only callable from a separate crowdsale contract, so any sort of rules can be added without modifying the token itself.
+
+### VestedToken
+
+Lines 23, 27: 
+Functions `transfer()` and `transferFrom()` have a modifier canTransfer which throws if not enough tokens are available. However, transfer() returns a boolean success. Inconsistent treatment of failure conditions may cause problems for other contracts using the token. (Note that transferableTokens() relies on safeSub(), so will also throw if there's insufficient balance.) 
+
+Line 64: 
+Delete not actually necessary since the value is overwritten in the next line anyway.
+
+## Root level
+
+### Bounty
+
+Avoids potential race condition by having each researcher deploy a separate contract for attack; if a research manages to break his associated contract, other researchers can't immediately claim the reward, they have to reproduce the attack in their own contracts.
+
+A developer could subvert this intent by implementing `deployContract()` to always return the same address. However, this would break the `researchers` mapping, updating the researcher address associated with the contract. This could be prevented by blocking rewrites in `researchers`.
+
+### DayLimit
+
+The modifier `limitedDaily` calls `underLimit`, which both checks that the spend is below the daily limit, and adds the input value to the daily spend. This is fine if all functions throw upon failure. However, not all OpenZeppelin functions do this; there are functions that returns false, and modifiers that wrap the function body in `if (bool) {_;}`. In these cases, `_value` will be added to `spentToday`, but ether may not actually be sent because other preconditions were not met. (However in the OpenZeppelin multisig this is not a problem.)
+
+Lines 4, 11:
+Comment claims that `DayLimit` is multiowned, and Shareable is imported, but DayLimit does not actually inherit from Shareable. The intent may be for child contracts to inherit from Shareable (as Multisig does); in this case the import should be removed and the comment altered.
+
+Line 46: 
+Manual overflow check instead of using safeAdd. Since this is called from a function that throws upon failure anyway, there's no real downside to using safeAdd.
+
+### LimitBalance
+
+No issues.
+
+### MultisigWallet
+
+Lines 28, 76, 80: 
+`kill`, `setDailyLimit`, and `resetSpentToday` only happen with multisig approval, and hashes for these actions are logged by Shareable. However, they should probably post their own events for easy reading.
+
+Line 45: 
+This call to underLimit will reduce the daily limit, and then either throw or return 0. So in this case there's no danger that the limit will be reduced without the operation going through.
+
+Line 65: 
+Shareable's onlyManyOwners will take the user's confirmation, and execute the function body if and only if enough users have confirmed. Whole thing throws if the send fails, which will roll back the confirmation. Confirm returns false if not enough have confirmed yet, true if the whole thing succeeds, and throws only in the exceptional circumstance that the designated transaction unexpectedly fails. Elegant design.
+
+Line 68: 
+Throw here is good but note this function can fail either by returning false or by throwing.
+
+Line 92: 
+A bit odd to split `clearPending()` between this contract and Shareable. However this does allow contracts inheriting from Shareable to use custom structs for pending transactions.
+
+
+### SafeMath
+
+Another interesting comment from the same Edcon presentation was that the overflow behavior of Solidity is undocumented, so in theory, source code that relies on it could break with a future revision.
+
+However, compiled code should be fine, and in the unlikely event that the compiler is revised in this way, there should be plenty of warning. (But this is an argument for keeping overflow checks isolated in SafeMath.)
+
+Aside from that small caveat, these are fine.
+

contracts/Bounty.sol

@@ -1,58 +1,72 @@
-pragma solidity ^0.4.4;
+pragma solidity ^0.4.11;
 
 
-import './PullPayment.sol';
-import './Killable.sol';
+import './payment/PullPayment.sol';
+import './lifecycle/Destructible.sol';
 
 
-/*
- * Bounty
- * 
- * This bounty will pay out to a researcher if they break invariant logic of the contract.
+/**
+ * @title Bounty
+ * @dev This bounty will pay out to a researcher if they break invariant logic of the contract.
  */
-contract Bounty is PullPayment, Killable {
-  Target target;
+contract Bounty is PullPayment, Destructible {
   bool public claimed;
   mapping(address => address) public researchers;
 
   event TargetCreated(address createdAddress);
 
+  /**
+   * @dev Fallback function allowing the contract to recieve funds, if they haven't already been claimed.
+   */
   function() payable {
-    if (claimed) throw;
+    require(!claimed);
   }
 
+  /**
+   * @dev Create and deploy the target contract (extension of Target contract), and sets the
+   * msg.sender as a researcher
+   * @return A target contract
+   */
   function createTarget() returns(Target) {
-    target = Target(deployContract());
+    Target target = Target(deployContract());
     researchers[target] = msg.sender;
     TargetCreated(target);
     return target;
   }
 
+  /**
+   * @dev Internal function to deploy the target contract.
+   * @return A target contract address
+   */
   function deployContract() internal returns(address);
 
-  function checkInvariant() returns(bool){
-    return target.checkInvariant();
-  }
-
+  /**
+   * @dev Sends the contract funds to the researcher that proved the contract is broken.
+   * @param target contract
+   */
   function claim(Target target) {
     address researcher = researchers[target];
-    if (researcher == 0) throw;
+    require(researcher != 0);
     // Check Target contract invariants
-    if (target.checkInvariant()) {
-      throw;
-    }
+    require(!target.checkInvariant());
     asyncSend(researcher, this.balance);
     claimed = true;
   }
 
 }
 
-/*
- * Target
- * 
- * Your main contract should inherit from this class and implement the checkInvariant method. This is a function that should check everything your contract assumes to be true all the time. If this function returns false, it means your contract was broken in some way and is in an inconsistent state. This is what security researchers will try to acomplish when trying to get the bounty.
+
+/**
+ * @title Target
+ * @dev Your main contract should inherit from this class and implement the checkInvariant method.
  */
 contract Target {
+
+   /**
+    * @dev Checks all values a contract assumes to be true all the time. If this function returns
+    * false, the contract is broken in some way and is in an inconsistent state.
+    * In order to win the bounty, security researchers will try to cause this broken state.
+    * @return True if all invariant values are correct, false otherwise.
+    */
   function checkInvariant() returns(bool);
 }
-

contracts/Claimable.sol

@@ -1,29 +0,0 @@
-pragma solidity ^0.4.0;
-
-
-import './Ownable.sol';
-
-
-/*
- * Claimable
- *
- * Extension for the Ownable contract, where the ownership needs to be claimed. This allows the new owner to accept the transfer.
- */
-contract Claimable is Ownable {
-  address public pendingOwner;
-
-  modifier onlyPendingOwner() {
-    if (msg.sender == pendingOwner)
-      _;
-  }
-
-  function transferOwnership(address newOwner) onlyOwner {
-    pendingOwner = newOwner;
-  }
-
-  function claimOwnership() onlyPendingOwner {
-    owner = pendingOwner;
-    pendingOwner = 0x0;
-  }
-
-}

contracts/DayLimit.sol

@@ -1,59 +1,46 @@
-pragma solidity ^0.4.4;
+pragma solidity ^0.4.11;
 
-
-import './Shareable.sol';
-
-
-/*
- * DayLimit
- *
- * inheritable "property" contract that enables methods to be protected by placing a linear limit (specifiable)
- * on a particular resource per calendar day. is multiowned to allow the limit to be altered. resource that method
- * uses is specified in the modifier.
+/**
+ * @title DayLimit
+ * @dev Base contract that enables methods to be protected by placing a linear limit (specifiable)
+ * on a particular resource per calendar day. Is multiowned to allow the limit to be altered.
  */
 contract DayLimit {
-  // FIELDS
 
-  uint public dailyLimit;
-  uint public spentToday;
-  uint public lastDay;
+  uint256 public dailyLimit;
+  uint256 public spentToday;
+  uint256 public lastDay;
 
-
-  // MODIFIERS
-
-  // simple modifier for daily limit.
-  modifier limitedDaily(uint _value) {
-    if (underLimit(_value))
-      _;
-  }
-
-
-  // CONSTRUCTOR
-  // stores initial daily limit and records the present day's index.
-  function DayLimit(uint _limit) {
+  /**
+   * @dev Constructor that sets the passed value as a dailyLimit.
+   * @param _limit uint256 to represent the daily limit.
+   */
+  function DayLimit(uint256 _limit) {
     dailyLimit = _limit;
     lastDay = today();
   }
 
-
-  // METHODS
-
-  // (re)sets the daily limit. doesn't alter the amount already spent today.
-  function _setDailyLimit(uint _newLimit) internal {
+  /**
+   * @dev sets the daily limit. Does not alter the amount already spent today.
+   * @param _newLimit uint256 to represent the new limit.
+   */
+  function _setDailyLimit(uint256 _newLimit) internal {
     dailyLimit = _newLimit;
   }
 
-  // resets the amount already spent today.
+  /**
+   * @dev Resets the amount already spent today.
+   */
   function _resetSpentToday() internal {
     spentToday = 0;
   }
 
-
-  // INTERNAL METHODS
-
-  // checks to see if there is at least `_value` left from the daily limit today. if there is, subtracts it and
-  // returns true. otherwise just returns false.
-  function underLimit(uint _value) internal returns (bool) {
+  /**
+   * @dev Checks to see if there is enough resource to spend today. If true, the resource may be expended.
+   * @param _value uint256 representing the amount of resource to spend.
+   * @return A boolean that is True if the resource was spended and false otherwise.
+   */
+  function underLimit(uint256 _value) internal returns (bool) {
     // reset the spend limit if we're on a different day to last time.
     if (today() > lastDay) {
       spentToday = 0;
@@ -68,8 +55,19 @@ contract DayLimit {
     return false;
   }
 
-  // determines today's index.
-  function today() private constant returns (uint) {
+  /**
+   * @dev Private function to determine today's index
+   * @return uint256 of today's index.
+   */
+  function today() private constant returns (uint256) {
     return now / 1 days;
   }
+
+  /**
+   * @dev Simple modifier for daily limit.
+   */
+  modifier limitedDaily(uint256 _value) {
+    require(underLimit(_value));
+    _;
+  }
 }

contracts/DelayedClaimable.sol

@@ -1,30 +0,0 @@
-pragma solidity ^0.4.4;
-import './Ownable.sol';
-import './Claimable.sol';
-
-/*
- * DelayedClaimable
- * Extension for the Claimable contract, where the ownership needs to be claimed before/after certain block number
- */
-
-contract DelayedClaimable is Ownable, Claimable {
-
-  uint public claimBeforeBlock;
-  uint public claimAfterBlock;
-
-  function setClaimBlocks(uint _claimBeforeBlock, uint _claimAfterBlock) onlyOwner {
-    if (_claimAfterBlock > claimBeforeBlock)
-        throw;
-    claimBeforeBlock = _claimBeforeBlock;
-    claimAfterBlock = _claimAfterBlock;
-  }
-
-  function claimOwnership() onlyPendingOwner {
-    if ((block.number > claimBeforeBlock) || (block.number < claimAfterBlock))
-        throw;
-    owner = pendingOwner;
-    pendingOwner = 0x0;
-    claimBeforeBlock = 0;
-  }
-
-}

contracts/ECRecovery.sol

@@ -0,0 +1,47 @@
+pragma solidity ^0.4.11;
+
+
+/**
+ * @title Eliptic curve signature operations
+ *
+ * @dev Based on https://gist.github.com/axic/5b33912c6f61ae6fd96d6c4a47afde6d
+ */
+
+library ECRecovery {
+
+  /**
+   * @dev Recover signer address from a message by using his signature
+   * @param hash bytes32 message, the hash is the signed message. What is recovered is the signer address.
+   * @param sig bytes signature, the signature is generated using web3.eth.sign()
+   */
+  function recover(bytes32 hash, bytes sig) constant returns (address) {
+    bytes32 r;
+    bytes32 s;
+    uint8 v;
+
+    //Check the signature length
+    if (sig.length != 65) {
+      return (address(0));
+    }
+
+    // Divide the signature in r, s and v variables
+    assembly {
+      r := mload(add(sig, 32))
+      s := mload(add(sig, 64))
+      v := byte(0, mload(add(sig, 96)))
+    }
+
+    // Version of signature should be 27 or 28, but 0 and 1 are also possible versions
+    if (v < 27) {
+      v += 27;
+    }
+
+    // If the version is correct return the signer address
+    if (v != 27 && v != 28) {
+      return (address(0));
+    } else {
+      return ecrecover(hash, v, r, s);
+    }
+  }
+
+}

contracts/Killable.sol

@@ -1,15 +0,0 @@
-pragma solidity ^0.4.4;
-
-
-import "./Ownable.sol";
-
-
-/*
- * Killable
- * Base contract that can be killed by owner. All funds in contract will be sent to the owner.
- */
-contract Killable is Ownable {
-  function kill() onlyOwner {
-    selfdestruct(owner);
-  }
-}

contracts/LimitBalance.sol

@@ -1,27 +1,31 @@
-pragma solidity ^0.4.4;
+pragma solidity ^0.4.11;
 
 
 /**
- * LimitBalance
- * Simple contract to limit the balance of child contract.
- * Note this doesn't prevent other contracts to send funds 
- * by using selfdestruct(address);
- * See: https://github.com/ConsenSys/smart-contract-best-practices#remember-that-ether-can-be-forcibly-sent-to-an-account
+ * @title LimitBalance
+ * @dev Simple contract to limit the balance of child contract.
+ * @dev Note this doesn't prevent other contracts to send funds by using selfdestruct(address);
+ * @dev See: https://github.com/ConsenSys/smart-contract-best-practices#remember-that-ether-can-be-forcibly-sent-to-an-account
  */
 contract LimitBalance {
 
-  uint public limit;
+  uint256 public limit;
 
-  function LimitBalance(uint _limit) {
+  /**
+   * @dev Constructor that sets the passed value as a limit.
+   * @param _limit uint256 to represent the limit.
+   */
+  function LimitBalance(uint256 _limit) {
     limit = _limit;
   }
 
-  modifier limitedPayable() { 
-    if (this.balance > limit) {
-      throw;
-    }
+  /**
+   * @dev Checks if limit was reached. Case true, it throws.
+   */
+  modifier limitedPayable() {
+    require(this.balance <= limit);
     _;
-    
+
   }
 
 }

contracts/Migrations.sol

@@ -1,18 +0,0 @@
-pragma solidity ^0.4.4;
-
-
-import './Ownable.sol';
-
-
-contract Migrations is Ownable {
-  uint public lastCompletedMigration;
-
-  function setCompleted(uint completed) onlyOwner {
-    lastCompletedMigration = completed;
-  }
-
-  function upgrade(address newAddress) onlyOwner {
-    Migrations upgraded = Migrations(newAddress);
-    upgraded.setCompleted(lastCompletedMigration);
-  }
-}

contracts/MultisigWallet.sol

@@ -1,67 +1,72 @@
-pragma solidity ^0.4.4;
+pragma solidity ^0.4.11;
 
 
-import "./Multisig.sol";
-import "./Shareable.sol";
+import "./ownership/Multisig.sol";
+import "./ownership/Shareable.sol";
 import "./DayLimit.sol";
 
 
-/*
+/**
  * MultisigWallet
- * usage:
- * bytes32 h = Wallet(w).from(oneOwner).execute(to, value, data);
- * Wallet(w).from(anotherOwner).confirm(h);
+ * Usage:
+ *     bytes32 h = Wallet(w).from(oneOwner).execute(to, value, data);
+ *     Wallet(w).from(anotherOwner).confirm(h);
  */
 contract MultisigWallet is Multisig, Shareable, DayLimit {
-  // TYPES
 
-  // Transaction structure to remember details of transaction lest it need be saved for a later call.
   struct Transaction {
     address to;
-    uint value;
+    uint256 value;
     bytes data;
   }
 
-
-  // CONSTRUCTOR
-
-  // just pass on the owner array to the multiowned and
-  // the limit to daylimit
-  function MultisigWallet(address[] _owners, uint _required, uint _daylimit)
+  /**
+   * Constructor, sets the owners addresses, number of approvals required, and daily spending limit
+   * @param _owners A list of owners.
+   * @param _required The amount required for a transaction to be approved.
+   */
+  function MultisigWallet(address[] _owners, uint256 _required, uint256 _daylimit)
     Shareable(_owners, _required)
     DayLimit(_daylimit) { }
 
-
-  // METHODS
-
-  // kills the contract sending everything to `_to`.
-  function kill(address _to) onlymanyowners(sha3(msg.data)) external {
-    suicide(_to);
+  /**
+   * @dev destroys the contract sending everything to `_to`.
+   */
+  function destroy(address _to) onlymanyowners(keccak256(msg.data)) external {
+    selfdestruct(_to);
   }
 
-  // gets called when no other function matches
+  /**
+   * @dev Fallback function, receives value and emits a deposit event.
+   */
   function() payable {
     // just being sent some cash?
     if (msg.value > 0)
       Deposit(msg.sender, msg.value);
   }
 
-  // Outside-visible transact entry point. Executes transaction immediately if below daily spend limit.
-  // If not, goes into multisig process. We provide a hash on return to allow the sender to provide
-  // shortcuts for the other confirmations (allowing them to avoid replicating the _to, _value
-  // and _data arguments). They still get the option of using them if they want, anyways.
-  function execute(address _to, uint _value, bytes _data) external onlyOwner returns (bytes32 _r) {
+  /**
+   * @dev Outside-visible transaction entry point. Executes transaction immediately if below daily
+   * spending limit. If not, goes into multisig process. We provide a hash on return to allow the
+   * sender to provide shortcuts for the other confirmations (allowing them to avoid replicating
+   * the _to, _value, and _data arguments). They still get the option of using them if they want,
+   * anyways.
+   * @param _to The receiver address
+   * @param _value The value to send
+   * @param _data The data part of the transaction
+   */
+  function execute(address _to, uint256 _value, bytes _data) external onlyOwner returns (bytes32 _r) {
     // first, take the opportunity to check that we're under the daily limit.
     if (underLimit(_value)) {
       SingleTransact(msg.sender, _value, _to, _data);
       // yes - just execute the call.
       if (!_to.call.value(_value)(_data)) {
-        throw;
+        revert();
       }
       return 0;
     }
     // determine our operation hash.
-    _r = sha3(msg.data, block.number);
+    _r = keccak256(msg.data, block.number);
     if (!confirm(_r) && txs[_r].to == 0) {
       txs[_r].to = _to;
       txs[_r].value = _value;
@@ -70,33 +75,43 @@ contract MultisigWallet is Multisig, Shareable, DayLimit {
     }
   }
 
-  // confirm a transaction through just the hash. we use the previous transactions map, txs, in order
-  // to determine the body of the transaction from the hash provided.
+  /**
+   * @dev Confirm a transaction by providing just the hash. We use the previous transactions map,
+   * txs, in order to determine the body of the transaction from the hash provided.
+   * @param _h The transaction hash to approve.
+   */
   function confirm(bytes32 _h) onlymanyowners(_h) returns (bool) {
     if (txs[_h].to != 0) {
-      if (!txs[_h].to.call.value(txs[_h].value)(txs[_h].data)) {
-        throw;
-      }
+      assert(txs[_h].to.call.value(txs[_h].value)(txs[_h].data));
       MultiTransact(msg.sender, _h, txs[_h].value, txs[_h].to, txs[_h].data);
       delete txs[_h];
       return true;
     }
   }
 
-  function setDailyLimit(uint _newLimit) onlymanyowners(sha3(msg.data)) external {
+  /**
+   * @dev Updates the daily limit value.
+   * @param _newLimit  uint256 to represent the new limit.
+   */
+  function setDailyLimit(uint256 _newLimit) onlymanyowners(keccak256(msg.data)) external {
     _setDailyLimit(_newLimit);
   }
 
-  function resetSpentToday() onlymanyowners(sha3(msg.data)) external {
+  /**
+   * @dev Resets the value spent to enable more spending
+   */
+  function resetSpentToday() onlymanyowners(keccak256(msg.data)) external {
     _resetSpentToday();
   }
 
 
   // INTERNAL METHODS
-
+  /**
+   * @dev Clears the list of transactions pending approval.
+   */
   function clearPending() internal {
-    uint length = pendingsIndex.length;
-    for (uint i = 0; i < length; ++i) {
+    uint256 length = pendingsIndex.length;
+    for (uint256 i = 0; i < length; ++i) {
       delete txs[pendingsIndex[i]];
     }
     super.clearPending();

contracts/Ownable.sol

@@ -1,26 +0,0 @@
-pragma solidity ^0.4.4;
-
-
-/*
- * Ownable
- *
- * Base contract with an owner.
- * Provides onlyOwner modifier, which prevents function from running if it is called by anyone other than the owner.
- */
-contract Ownable {
-  address public owner;
-
-  function Ownable() {
-    owner = msg.sender;
-  }
-
-  modifier onlyOwner() {
-    if (msg.sender == owner)
-      _;
-  }
-
-  function transferOwnership(address newOwner) onlyOwner {
-    if (newOwner != address(0)) owner = newOwner;
-  }
-
-}

contracts/PullPayment.sol

@@ -1,30 +0,0 @@
-pragma solidity ^0.4.4;
-
-
-/*
- * PullPayment
- * Base contract supporting async send for pull payments.
- * Inherit from this contract and use asyncSend instead of send.
- */
-contract PullPayment {
-  mapping(address => uint) public payments;
-
-  // store sent amount as credit to be pulled, called by payer
-  function asyncSend(address dest, uint amount) internal {
-    payments[dest] += amount;
-  }
-
-  // withdraw accumulated balance, called by payee
-  function withdrawPayments() {
-    address payee = msg.sender;
-    uint payment = payments[payee];
-    
-    if (payment == 0) throw;
-    if (this.balance < payment) throw;
-
-    payments[payee] = 0;
-    if (!payee.send(payment)) {
-      throw;
-    }
-  }
-}

contracts/ReentrancyGuard.sol

@@ -0,0 +1,31 @@
+pragma solidity ^0.4.11;
+
+/**
+ * @title Helps contracts guard agains rentrancy attacks.
+ * @author Remco Bloemen <remco@2π.com>
+ * @notice If you mark a function `nonReentrant`, you should also
+ * mark it `external`.
+ */
+contract ReentrancyGuard {
+
+  /**
+   * @dev We use a single lock for the whole contract.
+   */
+  bool private rentrancy_lock = false;
+
+  /**
+   * @dev Prevents a contract from calling itself, directly or indirectly.
+   * @notice If you mark a function `nonReentrant`, you should also
+   * mark it `external`. Calling one nonReentrant function from
+   * another is not supported. Instead, you can implement a
+   * `private` function doing the actual work, and a `external`
+   * wrapper marked as `nonReentrant`.
+   */
+  modifier nonReentrant() {
+    require(!rentrancy_lock);
+    rentrancy_lock = true;
+    _;
+    rentrancy_lock = false;
+  }
+
+}

contracts/SafeMath.sol

@@ -1,29 +0,0 @@
-pragma solidity ^0.4.4;
-
-
-/**
- * Math operations with safety checks
- */
-contract SafeMath {
-  function safeMul(uint a, uint b) internal returns (uint) {
-    uint c = a * b;
-    assert(a == 0 || c / a == b);
-    return c;
-  }
-
-  function safeSub(uint a, uint b) internal returns (uint) {
-    assert(b <= a);
-    return a - b;
-  }
-
-  function safeAdd(uint a, uint b) internal returns (uint) {
-    uint c = a + b;
-    assert(c>=a && c>=b);
-    return c;
-  }
-
-  function assert(bool assertion) internal {
-    if (!assertion) throw;
-  }
-}
-

contracts/Shareable.sol

@@ -1,164 +0,0 @@
-pragma solidity ^0.4.4;
-
-
-/*
- * Shareable
- *
- * Based on https://github.com/ethereum/dapp-bin/blob/master/wallet/wallet.sol
- *
- * inheritable "property" contract that enables methods to be protected by requiring the acquiescence of either a single, or, crucially, each of a number of, designated owners.
- *
- * usage:
- * use modifiers onlyowner (just own owned) or onlymanyowners(hash), whereby the same hash must be provided by some number (specified in constructor) of the set of owners (specified in the constructor) before the interior is executed.
- */
-contract Shareable {
-  // TYPES
-
-  // struct for the status of a pending operation.
-  struct PendingState {
-    uint yetNeeded;
-    uint ownersDone;
-    uint index;
-  }
-
-
-  // FIELDS
-
-  // the number of owners that must confirm the same operation before it is run.
-  uint public required;
-
-  // list of owners
-  uint[256] owners;
-  uint constant c_maxOwners = 250;
-  // index on the list of owners to allow reverse lookup
-  mapping(uint => uint) ownerIndex;
-  // the ongoing operations.
-  mapping(bytes32 => PendingState) pendings;
-  bytes32[] pendingsIndex;
-
-
-  // EVENTS
-
-  // this contract only has six types of events: it can accept a confirmation, in which case
-  // we record owner and operation (hash) alongside it.
-  event Confirmation(address owner, bytes32 operation);
-  event Revoke(address owner, bytes32 operation);
-
-
-  // MODIFIERS
-
-  // simple single-sig function modifier.
-  modifier onlyOwner {
-    if (isOwner(msg.sender))
-      _;
-  }
-
-  // multi-sig function modifier: the operation must have an intrinsic hash in order
-  // that later attempts can be realised as the same underlying operation and
-  // thus count as confirmations.
-  modifier onlymanyowners(bytes32 _operation) {
-    if (confirmAndCheck(_operation))
-      _;
-  }
-
-
-  // CONSTRUCTOR
-
-  // constructor is given number of sigs required to do protected "onlymanyowners" transactions
-  // as well as the selection of addresses capable of confirming them.
-  function Shareable(address[] _owners, uint _required) {
-    owners[1] = uint(msg.sender);
-    ownerIndex[uint(msg.sender)] = 1;
-    for (uint i = 0; i < _owners.length; ++i) {
-      owners[2 + i] = uint(_owners[i]);
-      ownerIndex[uint(_owners[i])] = 2 + i;
-    }
-    required = _required;
-  }
-
-
-  // METHODS
-
-  // Revokes a prior confirmation of the given operation
-  function revoke(bytes32 _operation) external {
-    uint index = ownerIndex[uint(msg.sender)];
-    // make sure they're an owner
-    if (index == 0) return;
-    uint ownerIndexBit = 2**index;
-    var pending = pendings[_operation];
-    if (pending.ownersDone & ownerIndexBit > 0) {
-      pending.yetNeeded++;
-      pending.ownersDone -= ownerIndexBit;
-      Revoke(msg.sender, _operation);
-    }
-  }
-
-  // Gets an owner by 0-indexed position (using numOwners as the count)
-  function getOwner(uint ownerIndex) external constant returns (address) {
-    return address(owners[ownerIndex + 1]);
-  }
-
-  function isOwner(address _addr) constant returns (bool) {
-    return ownerIndex[uint(_addr)] > 0;
-  }
-
-  function hasConfirmed(bytes32 _operation, address _owner) constant returns (bool) {
-    var pending = pendings[_operation];
-    uint index = ownerIndex[uint(_owner)];
-
-    // make sure they're an owner
-    if (index == 0) return false;
-
-    // determine the bit to set for this owner.
-    uint ownerIndexBit = 2**index;
-    return !(pending.ownersDone & ownerIndexBit == 0);
-  }
-
-  // INTERNAL METHODS
-
-  function confirmAndCheck(bytes32 _operation) internal returns (bool) {
-    // determine what index the present sender is:
-    uint index = ownerIndex[uint(msg.sender)];
-    // make sure they're an owner
-    if (index == 0) return;
-
-    var pending = pendings[_operation];
-    // if we're not yet working on this operation, switch over and reset the confirmation status.
-    if (pending.yetNeeded == 0) {
-      // reset count of confirmations needed.
-      pending.yetNeeded = required;
-      // reset which owners have confirmed (none) - set our bitmap to 0.
-      pending.ownersDone = 0;
-      pending.index = pendingsIndex.length++;
-      pendingsIndex[pending.index] = _operation;
-    }
-    // determine the bit to set for this owner.
-    uint ownerIndexBit = 2**index;
-    // make sure we (the message sender) haven't confirmed this operation previously.
-    if (pending.ownersDone & ownerIndexBit == 0) {
-      Confirmation(msg.sender, _operation);
-      // ok - check if count is enough to go ahead.
-      if (pending.yetNeeded <= 1) {
-        // enough confirmations: reset and run interior.
-        delete pendingsIndex[pendings[_operation].index];
-        delete pendings[_operation];
-        return true;
-      }
-      else
-        {
-          // not enough: record that this owner in particular confirmed.
-          pending.yetNeeded--;
-          pending.ownersDone |= ownerIndexBit;
-        }
-    }
-  }
-
-  function clearPending() internal {
-    uint length = pendingsIndex.length;
-    for (uint i = 0; i < length; ++i)
-    if (pendingsIndex[i] != 0)
-      delete pendings[pendingsIndex[i]];
-    delete pendingsIndex;
-  }
-
-}

contracts/Stoppable.sol

@@ -1,28 +0,0 @@
-pragma solidity ^0.4.4;
-
-
-import "./Ownable.sol";
-
-
-/*
- * Stoppable
- * Abstract contract that allows children to implement an
- * emergency stop mechanism.
- */
-contract Stoppable is Ownable {
-  bool public stopped;
-
-  modifier stopInEmergency { if (!stopped) _; }
-  modifier onlyInEmergency { if (stopped) _; }
-
-  // called by the owner on emergency, triggers stopped state
-  function emergencyStop() external onlyOwner {
-    stopped = true;
-  }
-
-  // called by the owner on end of emergency, returns to normal state
-  function release() external onlyOwner onlyInEmergency {
-    stopped = false;
-  }
-
-}

contracts/crowdsale/CappedCrowdsale.sol

@@ -0,0 +1,34 @@
+pragma solidity ^0.4.11;
+
+import '../math/SafeMath.sol';
+import './Crowdsale.sol';
+
+/**
+ * @title CappedCrowdsale
+ * @dev Extension of Crowsdale with a max amount of funds raised
+ */
+contract CappedCrowdsale is Crowdsale {
+  using SafeMath for uint256;
+
+  uint256 public cap;
+
+  function CappedCrowdsale(uint256 _cap) {
+    require(_cap > 0);
+    cap = _cap;
+  }
+
+  // overriding Crowdsale#validPurchase to add extra cap logic
+  // @return true if investors can buy at the moment
+  function validPurchase() internal constant returns (bool) {
+    bool withinCap = weiRaised.add(msg.value) <= cap;
+    return super.validPurchase() && withinCap;
+  }
+
+  // overriding Crowdsale#hasEnded to add cap logic
+  // @return true if crowdsale event has ended
+  function hasEnded() public constant returns (bool) {
+    bool capReached = weiRaised >= cap;
+    return super.hasEnded() || capReached;
+  }
+
+}

contracts/crowdsale/Crowdsale.sol

@@ -0,0 +1,107 @@
+pragma solidity ^0.4.11;
+
+import '../token/MintableToken.sol';
+import '../math/SafeMath.sol';
+
+/**
+ * @title Crowdsale 
+ * @dev Crowdsale is a base contract for managing a token crowdsale.
+ * Crowdsales have a start and end block, where investors can make
+ * token purchases and the crowdsale will assign them tokens based
+ * on a token per ETH rate. Funds collected are forwarded to a wallet 
+ * as they arrive.
+ */
+contract Crowdsale {
+  using SafeMath for uint256;
+
+  // The token being sold
+  MintableToken public token;
+
+  // start and end block where investments are allowed (both inclusive)
+  uint256 public startBlock;
+  uint256 public endBlock;
+
+  // address where funds are collected
+  address public wallet;
+
+  // how many token units a buyer gets per wei
+  uint256 public rate;
+
+  // amount of raised money in wei
+  uint256 public weiRaised;
+
+  /**
+   * event for token purchase logging
+   * @param purchaser who paid for the tokens
+   * @param beneficiary who got the tokens
+   * @param value weis paid for purchase
+   * @param amount amount of tokens purchased
+   */ 
+  event TokenPurchase(address indexed purchaser, address indexed beneficiary, uint256 value, uint256 amount);
+
+
+  function Crowdsale(uint256 _startBlock, uint256 _endBlock, uint256 _rate, address _wallet) {
+    require(_startBlock >= block.number);
+    require(_endBlock >= _startBlock);
+    require(_rate > 0);
+    require(_wallet != 0x0);
+
+    token = createTokenContract();
+    startBlock = _startBlock;
+    endBlock = _endBlock;
+    rate = _rate;
+    wallet = _wallet;
+  }
+
+  // creates the token to be sold. 
+  // override this method to have crowdsale of a specific mintable token.
+  function createTokenContract() internal returns (MintableToken) {
+    return new MintableToken();
+  }
+
+
+  // fallback function can be used to buy tokens
+  function () payable {
+    buyTokens(msg.sender);
+  }
+
+  // low level token purchase function
+  function buyTokens(address beneficiary) payable {
+    require(beneficiary != 0x0);
+    require(validPurchase());
+
+    uint256 weiAmount = msg.value;
+
+    // calculate token amount to be created
+    uint256 tokens = weiAmount.mul(rate);
+
+    // update state
+    weiRaised = weiRaised.add(weiAmount);
+
+    token.mint(beneficiary, tokens);
+    TokenPurchase(msg.sender, beneficiary, weiAmount, tokens);
+
+    forwardFunds();
+  }
+
+  // send ether to the fund collection wallet
+  // override to create custom fund forwarding mechanisms
+  function forwardFunds() internal {
+    wallet.transfer(msg.value);
+  }
+
+  // @return true if the transaction can buy tokens
+  function validPurchase() internal constant returns (bool) {
+    uint256 current = block.number;
+    bool withinPeriod = current >= startBlock && current <= endBlock;
+    bool nonZeroPurchase = msg.value != 0;
+    return withinPeriod && nonZeroPurchase;
+  }
+
+  // @return true if crowdsale event has ended
+  function hasEnded() public constant returns (bool) {
+    return block.number > endBlock;
+  }
+
+
+}

contracts/crowdsale/FinalizableCrowdsale.sol

@@ -0,0 +1,39 @@
+pragma solidity ^0.4.11;
+
+import '../math/SafeMath.sol';
+import '../ownership/Ownable.sol';
+import './Crowdsale.sol';
+
+/**
+ * @title FinalizableCrowdsale
+ * @dev Extension of Crowsdale where an owner can do extra work
+ * after finishing. By default, it will end token minting.
+ */
+contract FinalizableCrowdsale is Crowdsale, Ownable {
+  using SafeMath for uint256;
+
+  bool public isFinalized = false;
+
+  event Finalized();
+
+  // should be called after crowdsale ends, to do
+  // some extra finalization work
+  function finalize() onlyOwner {
+    require(!isFinalized);
+    require(hasEnded());
+
+    finalization();
+    Finalized();
+    
+    isFinalized = true;
+  }
+
+  // end token minting on finalization
+  // override this with custom logic if needed
+  function finalization() internal {
+    token.finishMinting();
+  }
+
+
+
+}

contracts/crowdsale/RefundVault.sol

@@ -0,0 +1,56 @@
+pragma solidity ^0.4.11;
+
+import '../math/SafeMath.sol';
+import '../ownership/Ownable.sol';
+
+/**
+ * @title RefundVault
+ * @dev This contract is used for storing funds while a crowdsale
+ * is in progress. Supports refunding the money if crowdsale fails,
+ * and forwarding it if crowdsale is successful.
+ */
+contract RefundVault is Ownable {
+  using SafeMath for uint256;
+
+  enum State { Active, Refunding, Closed }
+
+  mapping (address => uint256) public deposited;
+  address public wallet;
+  State public state;
+
+  event Closed();
+  event RefundsEnabled();
+  event Refunded(address indexed beneficiary, uint256 weiAmount);
+
+  function RefundVault(address _wallet) {
+    require(_wallet != 0x0);
+    wallet = _wallet;
+    state = State.Active;
+  }
+
+  function deposit(address investor) onlyOwner payable {
+    require(state == State.Active);
+    deposited[investor] = deposited[investor].add(msg.value);
+  }
+
+  function close() onlyOwner {
+    require(state == State.Active);
+    state = State.Closed;
+    Closed();
+    wallet.transfer(this.balance);
+  }
+
+  function enableRefunds() onlyOwner {
+    require(state == State.Active);
+    state = State.Refunding;
+    RefundsEnabled();
+  }
+
+  function refund(address investor) {
+    require(state == State.Refunding);
+    uint256 depositedValue = deposited[investor];
+    deposited[investor] = 0;
+    investor.transfer(depositedValue);
+    Refunded(investor, depositedValue);
+  }
+}

contracts/crowdsale/RefundableCrowdsale.sol

@@ -0,0 +1,60 @@
+pragma solidity ^0.4.11;
+
+
+import '../math/SafeMath.sol';
+import './FinalizableCrowdsale.sol';
+import './RefundVault.sol';
+
+
+/**
+ * @title RefundableCrowdsale
+ * @dev Extension of Crowdsale contract that adds a funding goal, and
+ * the possibility of users getting a refund if goal is not met.
+ * Uses a RefundVault as the crowdsale's vault.
+ */
+contract RefundableCrowdsale is FinalizableCrowdsale {
+  using SafeMath for uint256;
+
+  // minimum amount of funds to be raised in weis
+  uint256 public goal;
+
+  // refund vault used to hold funds while crowdsale is running
+  RefundVault public vault;
+
+  function RefundableCrowdsale(uint256 _goal) {
+    require(_goal > 0);
+    vault = new RefundVault(wallet);
+    goal = _goal;
+  }
+
+  // We're overriding the fund forwarding from Crowdsale.
+  // In addition to sending the funds, we want to call
+  // the RefundVault deposit function
+  function forwardFunds() internal {
+    vault.deposit.value(msg.value)(msg.sender);
+  }
+
+  // if crowdsale is unsuccessful, investors can claim refunds here
+  function claimRefund() {
+    require(isFinalized);
+    require(!goalReached());
+
+    vault.refund(msg.sender);
+  }
+
+  // vault finalization task, called when owner calls finalize()
+  function finalization() internal {
+    if (goalReached()) {
+      vault.close();
+    } else {
+      vault.enableRefunds();
+    }
+
+    super.finalization();
+  }
+
+  function goalReached() public constant returns (bool) {
+    return weiRaised >= goal;
+  }
+
+}

contracts/examples/BadArrayUse.sol

@@ -1,23 +0,0 @@
-pragma solidity ^0.4.4;
-
-
-import '../PullPayment.sol';
-
-
-// UNSAFE CODE, DO NOT USE!
-contract BadArrayUse is PullPayment {
-  address[] employees;
-
-  function payBonus() {
-    for (var i = 0; i < employees.length; i++) {
-			address employee = employees[i];
-			uint bonus = calculateBonus(employee);
-    	asyncSend(employee, bonus);
-    }
-  }
-
-	function calculateBonus(address employee) returns (uint) {
-    // some expensive computation...
-  }
-
-}

contracts/examples/BadFailEarly.sol

@@ -1,17 +0,0 @@
-pragma solidity ^0.4.4;
-
-
-// UNSAFE CODE, DO NOT USE!
-contract BadFailEarly {
-
-  uint constant DEFAULT_SALARY = 50000;
-  mapping(string => uint) nameToSalary;
-
-  function getSalary(string name) constant returns (uint) {
-    if (bytes(name).length != 0 && nameToSalary[name] != 0) {
-      return nameToSalary[name];
-    } else {
-      return DEFAULT_SALARY;
-    }
-  }
-}

contracts/examples/BadPushPayments.sol

@@ -1,23 +0,0 @@
-pragma solidity ^0.4.4;
-
-
-// UNSAFE CODE, DO NOT USE!
-contract BadPushPayments {
-
-	address highestBidder;
-	uint highestBid;
-
-	function bid() payable {
-		if (msg.value < highestBid) throw;
-
-		if (highestBidder != 0) {
-      // return bid to previous winner
-			if (!highestBidder.send(highestBid)) {
-        throw;
-      }
-		}
-
-	  highestBidder = msg.sender;
-	  highestBid = msg.value;
-	}
-}

contracts/examples/GoodArrayUse.sol

@@ -1,25 +0,0 @@
-pragma solidity ^0.4.4;
-
-
-import '../PullPayment.sol';
-
-
-contract GoodArrayUse is PullPayment {
-  address[] employees;
-  mapping(address => uint) bonuses;
-
-  function payBonus() {
-    for (uint i = 0; i < employees.length; i++) {
-			address employee = employees[i];
-			uint bonus = bonuses[employee];
-    	asyncSend(employee, bonus);
-    }
-  }
-
-	function calculateBonus(address employee) returns (uint) {
-    uint bonus = 0;
-    // some expensive computation...
-    bonuses[employee] = bonus;
-  }
-
-}

contracts/examples/GoodFailEarly.sol

@@ -1,15 +0,0 @@
-pragma solidity ^0.4.4;
-
-
-contract GoodFailEarly {
-
-  uint constant DEFAULT_SALARY = 50000;
-  mapping(string => uint) nameToSalary;
-
-  function getSalary(string name) constant returns (uint) {
-    if (bytes(name).length == 0) throw;
-    if (nameToSalary[name] == 0) throw;
-
-    return nameToSalary[name];
-  }
-}

contracts/examples/GoodPullPayments.sol

@@ -1,27 +0,0 @@
-pragma solidity ^0.4.4;
-
-
-contract GoodPullPayments {
-  address highestBidder;
-  uint highestBid;
-  mapping(address => uint) refunds;
-
-  function bid() external payable {
-    if (msg.value < highestBid) throw;
-
-    if (highestBidder != 0) {
-      refunds[highestBidder] += highestBid;
-    }
-
-    highestBidder = msg.sender;
-    highestBid = msg.value;
-  }
-
-  function withdrawBid() external {
-    uint refund = refunds[msg.sender];
-    refunds[msg.sender] = 0;
-    if (!msg.sender.send(refund)) {
-      refunds[msg.sender] = refund;
-    }
-  }
-}

contracts/examples/ProofOfExistence.sol

@@ -1,38 +0,0 @@
-pragma solidity ^0.4.4;
-
-
-/*
- * Proof of Existence example contract
- * see https://medium.com/zeppelin-blog/the-hitchhikers-guide-to-smart-contracts-in-ethereum-848f08001f05
- */
-contract ProofOfExistence {
-
-  mapping (bytes32 => bool) public proofs;
-
-  // store a proof of existence in the contract state
-  function storeProof(bytes32 proof) {
-    proofs[proof] = true;
-  }
-
-  // calculate and store the proof for a document
-  function notarize(string document) {
-    var proof = calculateProof(document);
-    storeProof(proof);
-  }
-
-  // helper function to get a document's sha256
-  function calculateProof(string document) constant returns (bytes32) {
-    return sha256(document);
-  }
-
-  // check if a document has been notarized
-  function checkDocument(string document) constant returns (bool) {
-    var proof = calculateProof(document);
-    return hasProof(proof);
-  }
-
-  // returns true if proof is stored
-  function hasProof(bytes32 proof) constant returns (bool) {
-    return proofs[proof];
-  }
-}

contracts/examples/PullPaymentBid.sol

@@ -1,20 +0,0 @@
-pragma solidity ^0.4.4;
-
-
-import '../PullPayment.sol';
-
-
-contract PullPaymentBid is PullPayment {
-  address public highestBidder;
-  uint public highestBid;
-  
-  function bid() external payable {
-    if (msg.value <= highestBid) throw;
-    
-    if (highestBidder != 0) {
-      asyncSend(highestBidder, highestBid);
-    }
-    highestBidder = msg.sender;
-    highestBid = msg.value;
-  }
-}

contracts/examples/StoppableBid.sol

@@ -1,26 +0,0 @@
-pragma solidity ^0.4.4;
-
-
-import '../PullPayment.sol';
-import '../Stoppable.sol';
-
-
-contract StoppableBid is Stoppable, PullPayment {
-  address public highestBidder;
-  uint public highestBid;
-
-  function bid() external payable stopInEmergency {
-    if (msg.value <= highestBid) throw;
-    
-    if (highestBidder != 0) {
-      asyncSend(highestBidder, highestBid);
-    }
-    highestBidder = msg.sender;
-    highestBid = msg.value;
-  }
-
-  function withdraw() onlyInEmergency {
-    selfdestruct(owner);
-  }
-
-}

contracts/lifecycle/Destructible.sol

@@ -0,0 +1,25 @@
+pragma solidity ^0.4.11;
+
+
+import "../ownership/Ownable.sol";
+
+
+/**
+ * @title Destructible
+ * @dev Base contract that can be destroyed by owner. All funds in contract will be sent to the owner.
+ */
+contract Destructible is Ownable {
+
+  function Destructible() payable { } 
+
+  /**
+   * @dev Transfers the current balance to the owner and terminates the contract. 
+   */
+  function destroy() onlyOwner {
+    selfdestruct(owner);
+  }
+
+  function destroyAndSend(address _recipient) onlyOwner {
+    selfdestruct(_recipient);
+  }
+}

contracts/lifecycle/Migrations.sol

@@ -0,0 +1,21 @@
+pragma solidity ^0.4.11;
+
+
+import '../ownership/Ownable.sol';
+
+/**
+ * @title Migrations
+ * @dev This is a truffle contract, needed for truffle integration, not meant for use by Zeppelin users.
+ */
+contract Migrations is Ownable {
+  uint256 public lastCompletedMigration;
+
+  function setCompleted(uint256 completed) onlyOwner {
+    lastCompletedMigration = completed;
+  }
+
+  function upgrade(address newAddress) onlyOwner {
+    Migrations upgraded = Migrations(newAddress);
+    upgraded.setCompleted(lastCompletedMigration);
+  }
+}

contracts/lifecycle/Pausable.sol

@@ -0,0 +1,51 @@
+pragma solidity ^0.4.11;
+
+
+import "../ownership/Ownable.sol";
+
+
+/**
+ * @title Pausable
+ * @dev Base contract which allows children to implement an emergency stop mechanism.
+ */
+contract Pausable is Ownable {
+  event Pause();
+  event Unpause();
+
+  bool public paused = false;
+
+
+  /**
+   * @dev modifier to allow actions only when the contract IS paused
+   */
+  modifier whenNotPaused() {
+    require(!paused);
+    _;
+  }
+
+  /**
+   * @dev modifier to allow actions only when the contract IS NOT paused
+   */
+  modifier whenPaused {
+    require(paused);
+    _;
+  }
+
+  /**
+   * @dev called by the owner to pause, triggers stopped state
+   */
+  function pause() onlyOwner whenNotPaused returns (bool) {
+    paused = true;
+    Pause();
+    return true;
+  }
+
+  /**
+   * @dev called by the owner to unpause, returns to normal state
+   */
+  function unpause() onlyOwner whenPaused returns (bool) {
+    paused = false;
+    Unpause();
+    return true;
+  }
+}

contracts/lifecycle/TokenDestructible.sol

@@ -0,0 +1,36 @@
+pragma solidity ^0.4.11;
+
+
+import "../ownership/Ownable.sol";
+import "../token/ERC20Basic.sol";
+
+/** 
+ * @title TokenDestructible:
+ * @author Remco Bloemen <remco@2π.com>
+ * @dev Base contract that can be destroyed by owner. All funds in contract including
+ * listed tokens will be sent to the owner.
+ */
+contract TokenDestructible is Ownable {
+
+  function TokenDestructible() payable { } 
+
+  /** 
+   * @notice Terminate contract and refund to owner
+   * @param tokens List of addresses of ERC20 or ERC20Basic token contracts to
+   refund.
+   * @notice The called token contracts could try to re-enter this contract. Only
+   supply token contracts you trust.
+   */
+  function destroy(address[] tokens) onlyOwner {
+
+    // Transfer tokens to owner
+    for(uint256 i = 0; i < tokens.length; i++) {
+      ERC20Basic token = ERC20Basic(tokens[i]);
+      uint256 balance = token.balanceOf(this);
+      token.transfer(owner, balance);
+    }
+
+    // Transfer Eth to owner and terminate contract
+    selfdestruct(owner);
+  }
+}

contracts/math/Math.sol

@@ -0,0 +1,24 @@
+pragma solidity ^0.4.11;
+
+/**
+ * @title Math
+ * @dev Assorted math operations
+ */
+
+library Math {
+  function max64(uint64 a, uint64 b) internal constant returns (uint64) {
+    return a >= b ? a : b;
+  }
+
+  function min64(uint64 a, uint64 b) internal constant returns (uint64) {
+    return a < b ? a : b;
+  }
+
+  function max256(uint256 a, uint256 b) internal constant returns (uint256) {
+    return a >= b ? a : b;
+  }
+
+  function min256(uint256 a, uint256 b) internal constant returns (uint256) {
+    return a < b ? a : b;
+  }
+}

contracts/math/SafeMath.sol

@@ -0,0 +1,32 @@
+pragma solidity ^0.4.11;
+
+
+/**
+ * @title SafeMath
+ * @dev Math operations with safety checks that throw on error
+ */
+library SafeMath {
+  function mul(uint256 a, uint256 b) internal constant returns (uint256) {
+    uint256 c = a * b;
+    assert(a == 0 || c / a == b);
+    return c;
+  }
+
+  function div(uint256 a, uint256 b) internal constant returns (uint256) {
+    // assert(b > 0); // Solidity automatically throws when dividing by 0
+    uint256 c = a / b;
+    // assert(a == b * c + a % b); // There is no case in which this doesn't hold
+    return c;
+  }
+
+  function sub(uint256 a, uint256 b) internal constant returns (uint256) {
+    assert(b <= a);
+    return a - b;
+  }
+
+  function add(uint256 a, uint256 b) internal constant returns (uint256) {
+    uint256 c = a + b;
+    assert(c >= a);
+    return c;
+  }
+}

contracts/ownership/Claimable.sol

@@ -0,0 +1,38 @@
+pragma solidity ^0.4.11;
+
+
+import './Ownable.sol';
+
+
+/**
+ * @title Claimable
+ * @dev Extension for the Ownable contract, where the ownership needs to be claimed.
+ * This allows the new owner to accept the transfer.
+ */
+contract Claimable is Ownable {
+  address public pendingOwner;
+
+  /**
+   * @dev Modifier throws if called by any account other than the pendingOwner.
+   */
+  modifier onlyPendingOwner() {
+    require(msg.sender == pendingOwner);
+    _;
+  }
+
+  /**
+   * @dev Allows the current owner to set the pendingOwner address.
+   * @param newOwner The address to transfer ownership to.
+   */
+  function transferOwnership(address newOwner) onlyOwner {
+    pendingOwner = newOwner;
+  }
+
+  /**
+   * @dev Allows the pendingOwner address to finalize the transfer.
+   */
+  function claimOwnership() onlyPendingOwner {
+    owner = pendingOwner;
+    pendingOwner = 0x0;
+  }
+}

contracts/ownership/Contactable.sol

@@ -0,0 +1,21 @@
+pragma solidity ^0.4.11;
+
+import './Ownable.sol';
+
+/**
+ * @title Contactable token
+ * @dev Basic version of a contactable contract, allowing the owner to provide a string with their 
+ * contact information.
+ */
+contract Contactable is Ownable{
+
+    string public contactInformation;
+
+    /**
+     * @dev Allows the owner to set a string with their contact information.
+     * @param info The contact information to attach to the contract.
+     */
+    function setContactInformation(string info) onlyOwner{
+         contactInformation = info;
+     }
+}

contracts/ownership/DelayedClaimable.sol

@@ -0,0 +1,41 @@
+pragma solidity ^0.4.11;
+
+
+import './Claimable.sol';
+
+
+/**
+ * @title DelayedClaimable
+ * @dev Extension for the Claimable contract, where the ownership needs to be claimed before/after
+ * a certain block number.
+ */
+contract DelayedClaimable is Claimable {
+
+  uint256 public end;
+  uint256 public start;
+
+  /**
+   * @dev Used to specify the time period during which a pending
+   * owner can claim ownership.
+   * @param _start The earliest time ownership can be claimed.
+   * @param _end The latest time ownership can be claimed.
+   */
+  function setLimits(uint256 _start, uint256 _end) onlyOwner {
+    require(_start <= _end);
+    end = _end;
+    start = _start;
+  }
+
+
+  /**
+   * @dev Allows the pendingOwner address to finalize the transfer, as long as it is called within
+   * the specified start and end time.
+   */
+  function claimOwnership() onlyPendingOwner {
+    require((block.number <= end) && (block.number >= start));
+    owner = pendingOwner;
+    pendingOwner = 0x0;
+    end = 0;
+  }
+
+}

contracts/ownership/HasNoContracts.sol

@@ -0,0 +1,21 @@
+pragma solidity ^0.4.11;
+
+import "./Ownable.sol";
+
+/** 
+ * @title Contracts that should not own Contracts
+ * @author Remco Bloemen <remco@2π.com>
+ * @dev Should contracts (anything Ownable) end up being owned by this contract, it allows the owner
+ * of this contract to reclaim ownership of the contracts.
+ */
+contract HasNoContracts is Ownable {
+
+  /**
+   * @dev Reclaim ownership of Ownable contracts
+   * @param contractAddr The address of the Ownable to be reclaimed.
+   */
+  function reclaimContract(address contractAddr) external onlyOwner {
+    Ownable contractInst = Ownable(contractAddr);
+    contractInst.transferOwnership(owner);
+  }
+}

contracts/ownership/HasNoEther.sol

@@ -0,0 +1,40 @@
+pragma solidity ^0.4.11;
+
+import "./Ownable.sol";
+
+/**
+ * @title Contracts that should not own Ether
+ * @author Remco Bloemen <remco@2π.com>
+ * @dev This tries to block incoming ether to prevent accidental loss of Ether. Should Ether end up
+ * in the contract, it will allow the owner to reclaim this ether.
+ * @notice Ether can still be send to this contract by:
+ * calling functions labeled `payable`
+ * `selfdestruct(contract_address)`
+ * mining directly to the contract address
+*/
+contract HasNoEther is Ownable {
+
+  /**
+  * @dev Constructor that rejects incoming Ether
+  * @dev The `payable` flag is added so we can access `msg.value` without compiler warning. If we
+  * leave out payable, then Solidity will allow inheriting contracts to implement a payable
+  * constructor. By doing it this way we prevent a payable constructor from working. Alternatively
+  * we could use assembly to access msg.value.
+  */
+  function HasNoEther() payable {
+    require(msg.value == 0);
+  }
+
+  /**
+   * @dev Disallows direct send by settings a default function without the `payable` flag.
+   */
+  function() external {
+  }
+
+  /**
+   * @dev Transfer all Ether held by the contract to the owner.
+   */
+  function reclaimEther() external onlyOwner {
+    assert(owner.send(this.balance));
+  }
+}

contracts/ownership/HasNoTokens.sol

@@ -0,0 +1,34 @@
+pragma solidity ^0.4.11;
+
+import "./Ownable.sol";
+import "../token/ERC20Basic.sol";
+
+/**
+ * @title Contracts that should not own Tokens
+ * @author Remco Bloemen <remco@2π.com>
+ * @dev This blocks incoming ERC23 tokens to prevent accidental loss of tokens.
+ * Should tokens (any ERC20Basic compatible) end up in the contract, it allows the
+ * owner to reclaim the tokens.
+ */
+contract HasNoTokens is Ownable {
+
+ /**
+  * @dev Reject all ERC23 compatible tokens
+  * @param from_ address The address that is transferring the tokens
+  * @param value_ uint256 the amount of the specified token
+  * @param data_ Bytes The data passed from the caller.
+  */
+  function tokenFallback(address from_, uint256 value_, bytes data_) external {
+    revert();
+  }
+
+  /**
+   * @dev Reclaim all ERC20Basic compatible tokens
+   * @param tokenAddr address The address of the token contract
+   */
+  function reclaimToken(address tokenAddr) external onlyOwner {
+    ERC20Basic tokenInst = ERC20Basic(tokenAddr);
+    uint256 balance = tokenInst.balanceOf(this);
+    tokenInst.transfer(owner, balance);
+  }
+}

contracts/ownership/Multisig.sol

@@ -1,29 +1,28 @@
-pragma solidity ^0.4.4;
+pragma solidity ^0.4.11;
 
 
-/*
- * Multisig
- * Interface contract for multisig proxy contracts; see below for docs.
+/**
+ * @title Multisig
+ * @dev Interface contract for multisig proxy contracts; see below for docs.
  */
 contract Multisig {
   // EVENTS
 
   // logged events:
   // Funds has arrived into the wallet (record how much).
-  event Deposit(address _from, uint value);
+  event Deposit(address _from, uint256 value);
   // Single transaction going out of the wallet (record who signed for it, how much, and to whom it's going).
-  event SingleTransact(address owner, uint value, address to, bytes data);
+  event SingleTransact(address owner, uint256 value, address to, bytes data);
   // Multi-sig transaction going out of the wallet (record who signed for it last, the operation hash, how much, and to whom it's going).
-  event MultiTransact(address owner, bytes32 operation, uint value, address to, bytes data);
+  event MultiTransact(address owner, bytes32 operation, uint256 value, address to, bytes data);
   // Confirmation still needed for a transaction.
-  event ConfirmationNeeded(bytes32 operation, address initiator, uint value, address to, bytes data);
+  event ConfirmationNeeded(bytes32 operation, address initiator, uint256 value, address to, bytes data);
 
 
   // FUNCTIONS
 
   // TODO: document
   function changeOwner(address _from, address _to) external;
-  function execute(address _to, uint _value, bytes _data) external returns (bytes32);
+  function execute(address _to, uint256 _value, bytes _data) external returns (bytes32);
   function confirm(bytes32 _h) returns (bool);
 }
-

contracts/ownership/NoOwner.sol

@@ -0,0 +1,14 @@
+pragma solidity ^0.4.11;
+
+import "./HasNoEther.sol";
+import "./HasNoTokens.sol";
+import "./HasNoContracts.sol";
+
+/** 
+ * @title Base contract for contracts that should not own things.
+ * @author Remco Bloemen <remco@2π.com>
+ * @dev Solves a class of errors where a contract accidentally becomes owner of Ether, Tokens or 
+ * Owned contracts. See respective base contracts for details.
+ */
+contract NoOwner is HasNoEther, HasNoTokens, HasNoContracts {
+}

contracts/ownership/Ownable.sol

@@ -0,0 +1,41 @@
+pragma solidity ^0.4.11;
+
+
+/**
+ * @title Ownable
+ * @dev The Ownable contract has an owner address, and provides basic authorization control
+ * functions, this simplifies the implementation of "user permissions".
+ */
+contract Ownable {
+  address public owner;
+
+
+  /**
+   * @dev The Ownable constructor sets the original `owner` of the contract to the sender
+   * account.
+   */
+  function Ownable() {
+    owner = msg.sender;
+  }
+
+
+  /**
+   * @dev Throws if called by any account other than the owner.
+   */
+  modifier onlyOwner() {
+    require(msg.sender == owner);
+    _;
+  }
+
+
+  /**
+   * @dev Allows the current owner to transfer control of the contract to a newOwner.
+   * @param newOwner The address to transfer ownership to.
+   */
+  function transferOwnership(address newOwner) onlyOwner {
+    if (newOwner != address(0)) {
+      owner = newOwner;
+    }
+  }
+
+}

contracts/ownership/Shareable.sol

@@ -0,0 +1,183 @@
+pragma solidity ^0.4.11;
+
+
+/**
+ * @title Shareable
+ * @dev inheritable "property" contract that enables methods to be protected by requiring the
+ * acquiescence of either a single, or, crucially, each of a number of, designated owners.
+ * @dev Usage: use modifiers onlyowner (just own owned) or onlymanyowners(hash), whereby the same hash must be provided by some number (specified in constructor) of the set of owners (specified in the constructor) before the interior is executed.
+ */
+contract Shareable {
+
+  // struct for the status of a pending operation.
+  struct PendingState {
+    uint256 yetNeeded;
+    uint256 ownersDone;
+    uint256 index;
+  }
+
+  // the number of owners that must confirm the same operation before it is run.
+  uint256 public required;
+
+  // list of owners
+  address[256] owners;
+  // index on the list of owners to allow reverse lookup
+  mapping(address => uint256) ownerIndex;
+  // the ongoing operations.
+  mapping(bytes32 => PendingState) pendings;
+  bytes32[] pendingsIndex;
+
+
+  // this contract only has six types of events: it can accept a confirmation, in which case
+  // we record owner and operation (hash) alongside it.
+  event Confirmation(address owner, bytes32 operation);
+  event Revoke(address owner, bytes32 operation);
+
+
+  // simple single-sig function modifier.
+  modifier onlyOwner {
+    require(isOwner(msg.sender));
+    _;
+  }
+
+  /**
+   * @dev Modifier for multisig functions.
+   * @param _operation The operation must have an intrinsic hash in order that later attempts can be
+   * realised as the same underlying operation and thus count as confirmations.
+   */
+  modifier onlymanyowners(bytes32 _operation) {
+    if (confirmAndCheck(_operation)) {
+      _;
+    }
+  }
+
+  /**
+   * @dev Constructor is given the number of sigs required to do protected "onlymanyowners"
+   * transactions as well as the selection of addresses capable of confirming them.
+   * @param _owners A list of owners.
+   * @param _required The amount required for a transaction to be approved.
+   */
+  function Shareable(address[] _owners, uint256 _required) {
+    owners[1] = msg.sender;
+    ownerIndex[msg.sender] = 1;
+    for (uint256 i = 0; i < _owners.length; ++i) {
+      owners[2 + i] = _owners[i];
+      ownerIndex[_owners[i]] = 2 + i;
+    }
+    required = _required;
+    require(required <= owners.length);
+  }
+
+  /**
+   * @dev Revokes a prior confirmation of the given operation.
+   * @param _operation A string identifying the operation.
+   */
+  function revoke(bytes32 _operation) external {
+    uint256 index = ownerIndex[msg.sender];
+    // make sure they're an owner
+    if (index == 0) {
+      return;
+    }
+    uint256 ownerIndexBit = 2**index;
+    var pending = pendings[_operation];
+    if (pending.ownersDone & ownerIndexBit > 0) {
+      pending.yetNeeded++;
+      pending.ownersDone -= ownerIndexBit;
+      Revoke(msg.sender, _operation);
+    }
+  }
+
+  /**
+   * @dev Gets an owner by 0-indexed position (using numOwners as the count)
+   * @param ownerIndex uint256 The index of the owner
+   * @return The address of the owner
+   */
+  function getOwner(uint256 ownerIndex) external constant returns (address) {
+    return address(owners[ownerIndex + 1]);
+  }
+
+  /**
+   * @dev Checks if given address is an owner.
+   * @param _addr address The address which you want to check.
+   * @return True if the address is an owner and fase otherwise.
+   */
+  function isOwner(address _addr) constant returns (bool) {
+    return ownerIndex[_addr] > 0;
+  }
+
+  /**
+   * @dev Function to check is specific owner has already confirme the operation.
+   * @param _operation The operation identifier.
+   * @param _owner The owner address.
+   * @return True if the owner has confirmed and false otherwise.
+   */
+  function hasConfirmed(bytes32 _operation, address _owner) constant returns (bool) {
+    var pending = pendings[_operation];
+    uint256 index = ownerIndex[_owner];
+
+    // make sure they're an owner
+    if (index == 0) {
+      return false;
+    }
+
+    // determine the bit to set for this owner.
+    uint256 ownerIndexBit = 2**index;
+    return !(pending.ownersDone & ownerIndexBit == 0);
+  }
+
+  /**
+   * @dev Confirm and operation and checks if it's already executable.
+   * @param _operation The operation identifier.
+   * @return Returns true when operation can be executed.
+   */
+  function confirmAndCheck(bytes32 _operation) internal returns (bool) {
+    // determine what index the present sender is:
+    uint256 index = ownerIndex[msg.sender];
+    // make sure they're an owner
+    require(index != 0);
+
+    var pending = pendings[_operation];
+    // if we're not yet working on this operation, switch over and reset the confirmation status.
+    if (pending.yetNeeded == 0) {
+      // reset count of confirmations needed.
+      pending.yetNeeded = required;
+      // reset which owners have confirmed (none) - set our bitmap to 0.
+      pending.ownersDone = 0;
+      pending.index = pendingsIndex.length++;
+      pendingsIndex[pending.index] = _operation;
+    }
+    // determine the bit to set for this owner.
+    uint256 ownerIndexBit = 2**index;
+    // make sure we (the message sender) haven't confirmed this operation previously.
+    if (pending.ownersDone & ownerIndexBit == 0) {
+      Confirmation(msg.sender, _operation);
+      // ok - check if count is enough to go ahead.
+      if (pending.yetNeeded <= 1) {
+        // enough confirmations: reset and run interior.
+        delete pendingsIndex[pendings[_operation].index];
+        delete pendings[_operation];
+        return true;
+      } else {
+        // not enough: record that this owner in particular confirmed.
+        pending.yetNeeded--;
+        pending.ownersDone |= ownerIndexBit;
+      }
+    }
+    return false;
+  }
+
+
+  /**
+   * @dev Clear the pending list.
+   */
+  function clearPending() internal {
+    uint256 length = pendingsIndex.length;
+    for (uint256 i = 0; i < length; ++i) {
+      if (pendingsIndex[i] != 0) {
+        delete pendings[pendingsIndex[i]];
+      }
+    }
+    delete pendingsIndex;
+  }
+
+}

contracts/payment/PullPayment.sol

@@ -0,0 +1,43 @@
+pragma solidity ^0.4.11;
+
+
+import '../math/SafeMath.sol';
+
+
+/**
+ * @title PullPayment
+ * @dev Base contract supporting async send for pull payments. Inherit from this
+ * contract and use asyncSend instead of send.
+ */
+contract PullPayment {
+  using SafeMath for uint256;
+
+  mapping(address => uint256) public payments;
+  uint256 public totalPayments;
+
+  /**
+  * @dev Called by the payer to store the sent amount as credit to be pulled.
+  * @param dest The destination address of the funds.
+  * @param amount The amount to transfer.
+  */
+  function asyncSend(address dest, uint256 amount) internal {
+    payments[dest] = payments[dest].add(amount);
+    totalPayments = totalPayments.add(amount);
+  }
+
+  /**
+  * @dev withdraw accumulated balance, called by payee.
+  */
+  function withdrawPayments() {
+    address payee = msg.sender;
+    uint256 payment = payments[payee];
+
+    require(payment != 0);
+    require(this.balance >= payment);
+
+    totalPayments = totalPayments.sub(payment);
+    payments[payee] = 0;
+
+    assert(payee.send(payment));
+  }
+}

contracts/test-helpers/SafeMathMock.sol

@@ -1,21 +0,0 @@
-pragma solidity ^0.4.4;
-
-
-import '../SafeMath.sol';
-
-
-contract SafeMathMock is SafeMath {
-  uint public result;
-
-  function multiply(uint a, uint b) {
-    result = safeMul(a, b);
-  }
-
-  function subtract(uint a, uint b) {
-    result = safeSub(a, b);
-  }
-
-  function add(uint a, uint b) {
-    result = safeAdd(a, b);
-  }
-}

contracts/test-helpers/StoppableMock.sol

@@ -1,25 +0,0 @@
-pragma solidity ^0.4.4;
-
-
-import '../Stoppable.sol';
-
-
-// mock class using Stoppable
-contract StoppableMock is Stoppable {
-  bool public drasticMeasureTaken;
-  uint public count;
-
-  function StoppableMock() {
-    drasticMeasureTaken = false;
-    count = 0;
-  }
-
-  function normalProcess() external stopInEmergency {
-    count++;
-  }
-
-  function drasticMeasure() external onlyInEmergency {
-    drasticMeasureTaken = true;
-  }
-
-}

contracts/token/BasicToken.sol

@@ -1,29 +1,38 @@
-pragma solidity ^0.4.4;
+pragma solidity ^0.4.11;
 
 
 import './ERC20Basic.sol';
-import '../SafeMath.sol';
+import '../math/SafeMath.sol';
 
 
-/*
- * Basic token
- * Basic version of StandardToken, with no allowances
+/**
+ * @title Basic token
+ * @dev Basic version of StandardToken, with no allowances. 
  */
-contract BasicToken is ERC20Basic, SafeMath {
+contract BasicToken is ERC20Basic {
+  using SafeMath for uint256;
 
-  mapping(address => uint) balances;
+  mapping(address => uint256) balances;
 
-  function transfer(address _to, uint _value) {
-    if (balances[msg.sender] < _value) {
-      throw;
-    } 
-    balances[msg.sender] = safeSub(balances[msg.sender], _value);
-    balances[_to] = safeAdd(balances[_to], _value);
+  /**
+  * @dev transfer token for a specified address
+  * @param _to The address to transfer to.
+  * @param _value The amount to be transferred.
+  */
+  function transfer(address _to, uint256 _value) returns (bool) {
+    balances[msg.sender] = balances[msg.sender].sub(_value);
+    balances[_to] = balances[_to].add(_value);
     Transfer(msg.sender, _to, _value);
+    return true;
   }
 
-  function balanceOf(address _owner) constant returns (uint balance) {
+  /**
+  * @dev Gets the balance of the specified address.
+  * @param _owner The address to query the the balance of. 
+  * @return An uint256 representing the amount owned by the passed address.
+  */
+  function balanceOf(address _owner) constant returns (uint256 balance) {
     return balances[_owner];
   }
-  
+
 }

contracts/token/CrowdsaleToken.sol

@@ -1,38 +0,0 @@
-pragma solidity ^0.4.4;
-
-
-import "./StandardToken.sol";
-
-
-/*
- * CrowdsaleToken
- *
- * Simple ERC20 Token example, with crowdsale token creation
- */
-contract CrowdsaleToken is StandardToken {
-
-  string public name = "CrowdsaleToken";
-  string public symbol = "CRW";
-  uint public decimals = 18;
-
-  // 1 ether = 500 example tokens 
-  uint PRICE = 500;
-
-  function () payable {
-    createTokens(msg.sender);
-  }
-  
-  function createTokens(address recipient) payable {
-    if (msg.value == 0) throw;
-
-    uint tokens = safeMul(msg.value, getPrice());
-
-    totalSupply = safeAdd(totalSupply, tokens);
-    balances[recipient] = safeAdd(balances[recipient], tokens);
-  }
-  
-  // replace this with any other price function
-  function getPrice() constant returns (uint result){
-    return PRICE;
-  }
-}

contracts/token/ERC20.sol

@@ -1,18 +1,16 @@
-pragma solidity ^0.4.4;
+pragma solidity ^0.4.11;
 
 
-/*
- * ERC20 interface
- * see https://github.com/ethereum/EIPs/issues/20
+import './ERC20Basic.sol';
+
+
+/**
+ * @title ERC20 interface
+ * @dev see https://github.com/ethereum/EIPs/issues/20
  */
-contract ERC20 {
-  uint public totalSupply;
-  function balanceOf(address who) constant returns (uint);
-  function allowance(address owner, address spender) constant returns (uint);
-
-  function transfer(address to, uint value) returns (bool ok);
-  function transferFrom(address from, address to, uint value) returns (bool ok);
-  function approve(address spender, uint value) returns (bool ok);
-  event Transfer(address indexed from, address indexed to, uint value);
-  event Approval(address indexed owner, address indexed spender, uint value);
+contract ERC20 is ERC20Basic {
+  function allowance(address owner, address spender) constant returns (uint256);
+  function transferFrom(address from, address to, uint256 value) returns (bool);
+  function approve(address spender, uint256 value) returns (bool);
+  event Approval(address indexed owner, address indexed spender, uint256 value);
 }

contracts/token/ERC20Basic.sol

@@ -1,14 +1,14 @@
-pragma solidity ^0.4.4;
+pragma solidity ^0.4.11;
 
 
-/*
- * ERC20Basic
- * Simpler version of ERC20 interface
- * see https://github.com/ethereum/EIPs/issues/20
+/**
+ * @title ERC20Basic
+ * @dev Simpler version of ERC20 interface
+ * @dev see https://github.com/ethereum/EIPs/issues/179
  */
 contract ERC20Basic {
-  uint public totalSupply;
-  function balanceOf(address who) constant returns (uint);
-  function transfer(address to, uint value);
-  event Transfer(address indexed from, address indexed to, uint value);
+  uint256 public totalSupply;
+  function balanceOf(address who) constant returns (uint256);
+  function transfer(address to, uint256 value) returns (bool);
+  event Transfer(address indexed from, address indexed to, uint256 value);
 }

contracts/token/LimitedTransferToken.sol

@@ -0,0 +1,57 @@
+pragma solidity ^0.4.11;
+
+import "./ERC20.sol";
+
+/**
+ * @title LimitedTransferToken
+ * @dev LimitedTransferToken defines the generic interface and the implementation to limit token
+ * transferability for different events. It is intended to be used as a base class for other token
+ * contracts.
+ * LimitedTransferToken has been designed to allow for different limiting factors,
+ * this can be achieved by recursively calling super.transferableTokens() until the base class is
+ * hit. For example:
+ *     function transferableTokens(address holder, uint64 time) constant public returns (uint256) {
+ *       return min256(unlockedTokens, super.transferableTokens(holder, time));
+ *     }
+ * A working example is VestedToken.sol:
+ * https://github.com/OpenZeppelin/zeppelin-solidity/blob/master/contracts/token/VestedToken.sol
+ */
+
+contract LimitedTransferToken is ERC20 {
+
+  /**
+   * @dev Checks whether it can transfer or otherwise throws.
+   */
+  modifier canTransfer(address _sender, uint256 _value) {
+   require(_value <= transferableTokens(_sender, uint64(now)));
+   _;
+  }
+
+  /**
+   * @dev Checks modifier and allows transfer if tokens are not locked.
+   * @param _to The address that will recieve the tokens.
+   * @param _value The amount of tokens to be transferred.
+   */
+  function transfer(address _to, uint256 _value) canTransfer(msg.sender, _value) returns (bool) {
+    return super.transfer(_to, _value);
+  }
+
+  /**
+  * @dev Checks modifier and allows transfer if tokens are not locked.
+  * @param _from The address that will send the tokens.
+  * @param _to The address that will recieve the tokens.
+  * @param _value The amount of tokens to be transferred.
+  */
+  function transferFrom(address _from, address _to, uint256 _value) canTransfer(_from, _value) returns (bool) {
+    return super.transferFrom(_from, _to, _value);
+  }
+
+  /**
+   * @dev Default transferable tokens function returns all tokens for a holder (no limit).
+   * @dev Overwriting transferableTokens(address holder, uint64 time) is the way to provide the
+   * specific logic for limiting token transferability for a holder over time.
+   */
+  function transferableTokens(address holder, uint64 time) constant public returns (uint256) {
+    return balanceOf(holder);
+  }
+}

contracts/token/MintableToken.sol

@@ -0,0 +1,50 @@
+pragma solidity ^0.4.11;
+
+
+import './StandardToken.sol';
+import '../ownership/Ownable.sol';
+
+
+
+/**
+ * @title Mintable token
+ * @dev Simple ERC20 Token example, with mintable token creation
+ * @dev Issue: * https://github.com/OpenZeppelin/zeppelin-solidity/issues/120
+ * Based on code by TokenMarketNet: https://github.com/TokenMarketNet/ico/blob/master/contracts/MintableToken.sol
+ */
+
+contract MintableToken is StandardToken, Ownable {
+  event Mint(address indexed to, uint256 amount);
+  event MintFinished();
+
+  bool public mintingFinished = false;
+
+
+  modifier canMint() {
+    require(!mintingFinished);
+    _;
+  }
+
+  /**
+   * @dev Function to mint tokens
+   * @param _to The address that will recieve the minted tokens.
+   * @param _amount The amount of tokens to mint.
+   * @return A boolean that indicates if the operation was successful.
+   */
+  function mint(address _to, uint256 _amount) onlyOwner canMint returns (bool) {
+    totalSupply = totalSupply.add(_amount);
+    balances[_to] = balances[_to].add(_amount);
+    Mint(_to, _amount);
+    return true;
+  }
+
+  /**
+   * @dev Function to stop minting new tokens.
+   * @return True if the operation was successful.
+   */
+  function finishMinting() onlyOwner returns (bool) {
+    mintingFinished = true;
+    MintFinished();
+    return true;
+  }
+}

contracts/token/PausableToken.sol

@@ -0,0 +1,21 @@
+pragma solidity ^0.4.11;
+
+import './StandardToken.sol';
+import '../lifecycle/Pausable.sol';
+
+/**
+ * Pausable token
+ *
+ * Simple ERC20 Token example, with pausable token creation
+ **/
+
+contract PausableToken is StandardToken, Pausable {
+
+  function transfer(address _to, uint _value) whenNotPaused returns (bool) {
+    return super.transfer(_to, _value);
+  }
+
+  function transferFrom(address _from, address _to, uint _value) whenNotPaused returns (bool) {
+    return super.transferFrom(_from, _to, _value);
+  }
+}

contracts/token/SimpleToken.sol

@@ -1,23 +1,25 @@
-pragma solidity ^0.4.4;
+pragma solidity ^0.4.11;
 
 
 import "./StandardToken.sol";
 
 
-/*
- * SimpleToken
- *
- * Very simple ERC20 Token example, where all tokens are pre-assigned
- * to the creator. Note they can later distribute these tokens
- * as they wish using `transfer` and other `StandardToken` functions.
+/**
+ * @title SimpleToken
+ * @dev Very simple ERC20 Token example, where all tokens are pre-assigned to the creator. 
+ * Note they can later distribute these tokens as they wish using `transfer` and other
+ * `StandardToken` functions.
  */
 contract SimpleToken is StandardToken {
 
   string public name = "SimpleToken";
   string public symbol = "SIM";
-  uint public decimals = 18;
-  uint public INITIAL_SUPPLY = 10000;
-  
+  uint256 public decimals = 18;
+  uint256 public INITIAL_SUPPLY = 10000;
+
+  /**
+   * @dev Contructor that gives msg.sender all of existing tokens. 
+   */
   function SimpleToken() {
     totalSupply = INITIAL_SUPPLY;
     balances[msg.sender] = INITIAL_SUPPLY;

contracts/token/StandardToken.sol

@@ -1,50 +1,66 @@
-pragma solidity ^0.4.4;
+pragma solidity ^0.4.11;
 
 
+import './BasicToken.sol';
 import './ERC20.sol';
-import '../SafeMath.sol';
 
 
 /**
- * Standard ERC20 token
+ * @title Standard ERC20 token
  *
- * https://github.com/ethereum/EIPs/issues/20
- * Based on code by FirstBlood:
- * https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
+ * @dev Implementation of the basic standard token.
+ * @dev https://github.com/ethereum/EIPs/issues/20
+ * @dev Based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
  */
-contract StandardToken is ERC20, SafeMath {
+contract StandardToken is ERC20, BasicToken {
 
-  mapping(address => uint) balances;
-  mapping (address => mapping (address => uint)) allowed;
+  mapping (address => mapping (address => uint256)) allowed;
 
-  function transfer(address _to, uint _value) returns (bool success) {
-    balances[msg.sender] = safeSub(balances[msg.sender], _value);
-    balances[_to] = safeAdd(balances[_to], _value);
-    Transfer(msg.sender, _to, _value);
-    return true;
-  }
 
-  function transferFrom(address _from, address _to, uint _value) returns (bool success) {
+  /**
+   * @dev Transfer tokens from one address to another
+   * @param _from address The address which you want to send tokens from
+   * @param _to address The address which you want to transfer to
+   * @param _value uint256 the amout of tokens to be transfered
+   */
+  function transferFrom(address _from, address _to, uint256 _value) returns (bool) {
     var _allowance = allowed[_from][msg.sender];
-    
-    balances[_to] = safeAdd(balances[_to], _value);
-    balances[_from] = safeSub(balances[_from], _value);
-    allowed[_from][msg.sender] = safeSub(_allowance, _value);
+
+    // Check is not needed because sub(_allowance, _value) will already throw if this condition is not met
+    // require (_value <= _allowance);
+
+    balances[_to] = balances[_to].add(_value);
+    balances[_from] = balances[_from].sub(_value);
+    allowed[_from][msg.sender] = _allowance.sub(_value);
     Transfer(_from, _to, _value);
     return true;
   }
 
-  function balanceOf(address _owner) constant returns (uint balance) {
-    return balances[_owner];
-  }
+  /**
+   * @dev Aprove the passed address to spend the specified amount of tokens on behalf of msg.sender.
+   * @param _spender The address which will spend the funds.
+   * @param _value The amount of tokens to be spent.
+   */
+  function approve(address _spender, uint256 _value) returns (bool) {
+
+    // To change the approve amount you first have to reduce the addresses`
+    //  allowance to zero by calling `approve(_spender, 0)` if it is not
+    //  already 0 to mitigate the race condition described here:
+    //  https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
+    require((_value == 0) || (allowed[msg.sender][_spender] == 0));
 
-  function approve(address _spender, uint _value) returns (bool success) {
     allowed[msg.sender][_spender] = _value;
     Approval(msg.sender, _spender, _value);
     return true;
   }
 
-  function allowance(address _owner, address _spender) constant returns (uint remaining) {
+  /**
+   * @dev Function to check the amount of tokens that an owner allowed to a spender.
+   * @param _owner address The address which owns the funds.
+   * @param _spender address The address which will spend the funds.
+   * @return A uint256 specifing the amount of tokens still avaible for the spender.
+   */
+  function allowance(address _owner, address _spender) constant returns (uint256 remaining) {
     return allowed[_owner][_spender];
   }
 

contracts/token/TokenTimelock.sol

@@ -0,0 +1,49 @@
+pragma solidity ^0.4.11;
+
+
+import './ERC20Basic.sol';
+
+/**
+ * @title TokenTimelock
+ * @dev TokenTimelock is a token holder contract that will allow a 
+ * beneficiary to extract the tokens after a given release time
+ */
+contract TokenTimelock {
+  
+  // ERC20 basic token contract being held
+  ERC20Basic token;
+
+  // beneficiary of tokens after they are released
+  address beneficiary;
+
+  // timestamp when token release is enabled
+  uint releaseTime;
+
+  function TokenTimelock(ERC20Basic _token, address _beneficiary, uint _releaseTime) {
+    require(_releaseTime > now);
+    token = _token;
+    beneficiary = _beneficiary;
+    releaseTime = _releaseTime;
+  }
+
+  /**
+   * @notice Transfers tokens held by timelock to beneficiary.
+   * Deprecated: please use TokenTimelock#release instead.
+   */
+  function claim() {
+    require(msg.sender == beneficiary);
+    release();
+  }
+
+  /**
+   * @notice Transfers tokens held by timelock to beneficiary.
+   */
+  function release() {
+    require(now >= releaseTime);
+
+    uint amount = token.balanceOf(this);
+    require(amount > 0);
+
+    token.transfer(beneficiary, amount);
+  }
+}

contracts/token/VestedToken.sol

@@ -0,0 +1,241 @@
+pragma solidity ^0.4.11;
+
+import "../math/Math.sol";
+import "./StandardToken.sol";
+import "./LimitedTransferToken.sol";
+
+/**
+ * @title Vested token
+ * @dev Tokens that can be vested for a group of addresses.
+ */
+contract VestedToken is StandardToken, LimitedTransferToken {
+
+  uint256 MAX_GRANTS_PER_ADDRESS = 20;
+
+  struct TokenGrant {
+    address granter;     // 20 bytes
+    uint256 value;       // 32 bytes
+    uint64 cliff;
+    uint64 vesting;
+    uint64 start;        // 3 * 8 = 24 bytes
+    bool revokable;
+    bool burnsOnRevoke;  // 2 * 1 = 2 bits? or 2 bytes?
+  } // total 78 bytes = 3 sstore per operation (32 per sstore)
+
+  mapping (address => TokenGrant[]) public grants;
+
+  event NewTokenGrant(address indexed from, address indexed to, uint256 value, uint256 grantId);
+
+  /**
+   * @dev Grant tokens to a specified address
+   * @param _to address The address which the tokens will be granted to.
+   * @param _value uint256 The amount of tokens to be granted.
+   * @param _start uint64 Time of the beginning of the grant.
+   * @param _cliff uint64 Time of the cliff period.
+   * @param _vesting uint64 The vesting period.
+   */
+  function grantVestedTokens(
+    address _to,
+    uint256 _value,
+    uint64 _start,
+    uint64 _cliff,
+    uint64 _vesting,
+    bool _revokable,
+    bool _burnsOnRevoke
+  ) public {
+
+    // Check for date inconsistencies that may cause unexpected behavior
+    require(_cliff >= _start && _vesting >= _cliff);
+
+    require(tokenGrantsCount(_to) < MAX_GRANTS_PER_ADDRESS);   // To prevent a user being spammed and have his balance locked (out of gas attack when calculating vesting).
+
+    uint256 count = grants[_to].push(
+                TokenGrant(
+                  _revokable ? msg.sender : 0, // avoid storing an extra 20 bytes when it is non-revokable
+                  _value,
+                  _cliff,
+                  _vesting,
+                  _start,
+                  _revokable,
+                  _burnsOnRevoke
+                )
+              );
+
+    transfer(_to, _value);
+
+    NewTokenGrant(msg.sender, _to, _value, count - 1);
+  }
+
+  /**
+   * @dev Revoke the grant of tokens of a specifed address.
+   * @param _holder The address which will have its tokens revoked.
+   * @param _grantId The id of the token grant.
+   */
+  function revokeTokenGrant(address _holder, uint256 _grantId) public {
+    TokenGrant grant = grants[_holder][_grantId];
+
+    require(grant.revokable);
+    require(grant.granter == msg.sender); // Only granter can revoke it
+
+    address receiver = grant.burnsOnRevoke ? 0xdead : msg.sender;
+
+    uint256 nonVested = nonVestedTokens(grant, uint64(now));
+
+    // remove grant from array
+    delete grants[_holder][_grantId];
+    grants[_holder][_grantId] = grants[_holder][grants[_holder].length.sub(1)];
+    grants[_holder].length -= 1;
+
+    balances[receiver] = balances[receiver].add(nonVested);
+    balances[_holder] = balances[_holder].sub(nonVested);
+
+    Transfer(_holder, receiver, nonVested);
+  }
+
+
+  /**
+   * @dev Calculate the total amount of transferable tokens of a holder at a given time
+   * @param holder address The address of the holder
+   * @param time uint64 The specific time.
+   * @return An uint256 representing a holder's total amount of transferable tokens.
+   */
+  function transferableTokens(address holder, uint64 time) constant public returns (uint256) {
+    uint256 grantIndex = tokenGrantsCount(holder);
+
+    if (grantIndex == 0) return super.transferableTokens(holder, time); // shortcut for holder without grants
+
+    // Iterate through all the grants the holder has, and add all non-vested tokens
+    uint256 nonVested = 0;
+    for (uint256 i = 0; i < grantIndex; i++) {
+      nonVested = SafeMath.add(nonVested, nonVestedTokens(grants[holder][i], time));
+    }
+
+    // Balance - totalNonVested is the amount of tokens a holder can transfer at any given time
+    uint256 vestedTransferable = SafeMath.sub(balanceOf(holder), nonVested);
+
+    // Return the minimum of how many vested can transfer and other value
+    // in case there are other limiting transferability factors (default is balanceOf)
+    return Math.min256(vestedTransferable, super.transferableTokens(holder, time));
+  }
+
+  /**
+   * @dev Check the amount of grants that an address has.
+   * @param _holder The holder of the grants.
+   * @return A uint256 representing the total amount of grants.
+   */
+  function tokenGrantsCount(address _holder) constant returns (uint256 index) {
+    return grants[_holder].length;
+  }
+
+  /**
+   * @dev Calculate amount of vested tokens at a specifc time.
+   * @param tokens uint256 The amount of tokens grantted.
+   * @param time uint64 The time to be checked
+   * @param start uint64 A time representing the begining of the grant
+   * @param cliff uint64 The cliff period.
+   * @param vesting uint64 The vesting period.
+   * @return An uint256 representing the amount of vested tokensof a specif grant.
+   *  transferableTokens
+   *   |                         _/--------   vestedTokens rect
+   *   |                       _/
+   *   |                     _/
+   *   |                   _/
+   *   |                 _/
+   *   |                /
+   *   |              .|
+   *   |            .  |
+   *   |          .    |
+   *   |        .      |
+   *   |      .        |
+   *   |    .          |
+   *   +===+===========+---------+----------> time
+   *      Start       Clift    Vesting
+   */
+  function calculateVestedTokens(
+    uint256 tokens,
+    uint256 time,
+    uint256 start,
+    uint256 cliff,
+    uint256 vesting) constant returns (uint256)
+    {
+      // Shortcuts for before cliff and after vesting cases.
+      if (time < cliff) return 0;
+      if (time >= vesting) return tokens;
+
+      // Interpolate all vested tokens.
+      // As before cliff the shortcut returns 0, we can use just calculate a value
+      // in the vesting rect (as shown in above's figure)
+
+      // vestedTokens = tokens * (time - start) / (vesting - start)
+      uint256 vestedTokens = SafeMath.div(
+                                    SafeMath.mul(
+                                      tokens,
+                                      SafeMath.sub(time, start)
+                                      ),
+                                    SafeMath.sub(vesting, start)
+                                    );
+
+      return vestedTokens;
+  }
+
+  /**
+   * @dev Get all information about a specifc grant.
+   * @param _holder The address which will have its tokens revoked.
+   * @param _grantId The id of the token grant.
+   * @return Returns all the values that represent a TokenGrant(address, value, start, cliff,
+   * revokability, burnsOnRevoke, and vesting) plus the vested value at the current time.
+   */
+  function tokenGrant(address _holder, uint256 _grantId) constant returns (address granter, uint256 value, uint256 vested, uint64 start, uint64 cliff, uint64 vesting, bool revokable, bool burnsOnRevoke) {
+    TokenGrant grant = grants[_holder][_grantId];
+
+    granter = grant.granter;
+    value = grant.value;
+    start = grant.start;
+    cliff = grant.cliff;
+    vesting = grant.vesting;
+    revokable = grant.revokable;
+    burnsOnRevoke = grant.burnsOnRevoke;
+
+    vested = vestedTokens(grant, uint64(now));
+  }
+
+  /**
+   * @dev Get the amount of vested tokens at a specific time.
+   * @param grant TokenGrant The grant to be checked.
+   * @param time The time to be checked
+   * @return An uint256 representing the amount of vested tokens of a specific grant at a specific time.
+   */
+  function vestedTokens(TokenGrant grant, uint64 time) private constant returns (uint256) {
+    return calculateVestedTokens(
+      grant.value,
+      uint256(time),
+      uint256(grant.start),
+      uint256(grant.cliff),
+      uint256(grant.vesting)
+    );
+  }
+
+  /**
+   * @dev Calculate the amount of non vested tokens at a specific time.
+   * @param grant TokenGrant The grant to be checked.
+   * @param time uint64 The time to be checked
+   * @return An uint256 representing the amount of non vested tokens of a specifc grant on the
+   * passed time frame.
+   */
+  function nonVestedTokens(TokenGrant grant, uint64 time) private constant returns (uint256) {
+    return grant.value.sub(vestedTokens(grant, time));
+  }
+
+  /**
+   * @dev Calculate the date when the holder can trasfer all its tokens
+   * @param holder address The address of the holder
+   * @return An uint256 representing the date of the last transferable tokens.
+   */
+  function lastTokenIsTransferableDate(address holder) constant public returns (uint64 date) {
+    date = uint64(now);
+    uint256 grantIndex = grants[holder].length;
+    for (uint256 i = 0; i < grantIndex; i++) {
+      date = Math.max64(grants[holder][i].vesting, date);
+    }
+  }
+}

docs/source/bounty.rst

@@ -55,6 +55,6 @@ If researchers break the contract, they can claim their reward.
 
 For each researcher who wants to hack the contract and claims the reward, refer to our `Test <https://github.com/OpenZeppelin/zeppelin-solidity/blob/master/test/Bounty.js/>`_ for the detail.
 
-Finally, if you manage to protect your contract from security researchers, you can reclaim the bounty funds. To end the bounty, kill the contract so that all the rewards go back to the owner.::
+Finally, if you manage to protect your contract from security researchers, you can reclaim the bounty funds. To end the bounty, destroy the contract so that all the rewards go back to the owner.::
 
-	bounty.kill();
+	bounty.destroy();

docs/source/crowdsaletoken.rst

@@ -1,14 +0,0 @@
-CrowdsaleToken
-=============================================
-
-Simple ERC20 Token example, with crowdsale token creation.
-
-Inherits from contract StandardToken.
-
-createTokens(address recipient) payable
-"""""""""""""""""""""""""""""""""""""""""
-Creates tokens based on message value and credits to the recipient.
-
-getPrice() constant returns (uint result)
-"""""""""""""""""""""""""""""""""""""""""
-Returns the amount of tokens per 1 ether.

docs/source/ecrecovery.rst

@@ -0,0 +1,9 @@
+ECReovery
+=============================================
+
+Returns the signer of the the hash using the signature divided in v, r, and s values.
+
+recover(bytes32 hash, bytes sig) internal returns (address)
+"""""""""""""""""""""""""""""""""""""""""""""""""
+
+Returns the signer of the the hash using the signature that provides the web3.eth.sign() method.

docs/source/getting-started.rst

@@ -13,7 +13,7 @@ To install the Zeppelin library, run::
 
 After that, you'll get all the library's contracts in the contracts/zeppelin folder. You can use the contracts in the library like so::
 
-	import "./zeppelin/Ownable.sol";
+	import "zeppelin-solidity/contracts/Ownable.sol";
 
 	contract MyContract is Ownable {
 	  ...

docs/source/index.rst

@@ -26,8 +26,8 @@ The code is open-source, and `available on github <https://github.com/OpenZeppel
    :caption: Smart Contracts
    
    ownable
-   stoppable
-   killable
+   Pausable
+   destructible
    claimable
    migrations
    safemath

docs/source/killable.rst

@@ -1,11 +1,16 @@
-Killable
+Destructible
 =============================================
 
-Base contract that can be killed by owner.
+Base contract that can be destroyed by owner.
 
 Inherits from contract Ownable.
 
-kill( ) onlyOwner
+destroy( ) onlyOwner
 """""""""""""""""""
 
-Destroys the contract and sends funds back to the owner.
+Destroys the contract and sends funds back to the owner.
+
+destroyAndSend(address _recipient) onlyOwner
+"""""""""""""""""""
+
+Destroys the contract and sends funds back to the _recepient.

docs/source/math.rst

@@ -0,0 +1,24 @@
+Math
+=============================================
+
+Provides assorted low-level math operations.
+
+max64(uint64 a, uint64 b) internal constant returns (uint64)
+"""""""""""""""""""""""""""""""""""""""""""""""""
+
+Returns the largest of two uint64 numbers.
+
+min64(uint64 a, uint64 b) internal constant returns (uint64)
+"""""""""""""""""""""""""""""""""""""""""""""""""
+
+Returns the smallest of two uint64 numbers.
+
+max64(uint256 a, uint256 b) internal constant returns (uint256)
+"""""""""""""""""""""""""""""""""""""""""""""""""
+
+Returns the largest of two uint256 numbers.
+
+min64(uint256 a, uint256 b) internal constant returns (uint256)
+"""""""""""""""""""""""""""""""""""""""""""""""""
+
+Returns the smallest of two uint256 numbers.

docs/source/ownable.rst

@@ -11,6 +11,6 @@ modifier onlyOwner( )
 """"""""""""""""""""""""""""""""""""""
 Prevents function from running if it is called by anyone other than the owner.
 
-transfer(address newOwner) onlyOwner
+transferOwnership(address newOwner) onlyOwner
 """"""""""""""""""""""""""""""""""""""
-Transfers ownership of the contract to the passed address.
+Transfers ownership of the contract to the passed address.

docs/source/pausable.rst

@@ -0,0 +1,27 @@
+Pausable
+=============================================
+
+Base contract that provides a pause mechanism.
+
+Inherits from contract Ownable.
+
+pause() onlyOwner whenNotPaused returns (bool)
+"""""""""""""""""""""""""""""""""""""
+
+Triggers pause mechanism on the contract. After this function is called (by the owner of the contract), any function with modifier whenNotPaused will not run.
+
+
+modifier whenNotPaused()
+"""""""""""""""""""""""""""""""""""""
+
+Prevents function from running if pause mechanism is activated.
+
+modifier whenPaused()
+"""""""""""""""""""""""""""""""""""""
+
+Only runs if pause mechanism is activated.
+
+unpause() onlyOwner whenPaused returns (bool)
+""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
+
+Deactivates the pause mechanism.

docs/source/safemath.rst

@@ -8,17 +8,17 @@ assert(bool assertion) internal
 
 Throws an error if the passed result is false. Used in this contract by checking mathematical expressions.
 
-safeMul(uint a, uint b) internal returns (uint)
+mul(uint256 a, uint256 b) internal returns (uint256)
 """""""""""""""""""""""""""""""""""""""""""""""""
 
 Multiplies two unisgned integers. Asserts that dividing the product by the non-zero multiplicand results in the multiplier.
 
-safeSub(uint a, unit b) internal returns (uint)
+sub(uint256 a, uint256 b) internal returns (uint256)
 """""""""""""""""""""""""""""""""""""""""""""""""
 
 Checks that b is not greater than a before subtracting.
 
-safeAdd(unit a, unit b) internal returns (uint)
+add(uint256 a, uint256 b) internal returns (uint256)
 """""""""""""""""""""""""""""""""""""""""""""""""
 
 Checks that the result is greater than both a and b.

docs/source/stoppable.rst

@@ -1,26 +0,0 @@
-Stoppable
-=============================================
-
-Base contract that provides an emergency stop mechanism.
-
-Inherits from contract Ownable.
-
-emergencyStop( ) external onlyOwner
-"""""""""""""""""""""""""""""""""""""
-
-Triggers the stop mechanism on the contract. After this function is called (by the owner of the contract), any function with modifier stopInEmergency will not run.
-
-modifier stopInEmergency
-"""""""""""""""""""""""""""""""""""""
-
-Prevents function from running if stop mechanism is activated.
-
-modifier onlyInEmergency
-"""""""""""""""""""""""""""""""""""""
-
-Only runs if stop mechanism is activated.
-
-release( ) external onlyOwner onlyInEmergency
-""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
-
-Deactivates the stop mechanism.

ethpm.json

@@ -0,0 +1,17 @@
+{
+  "package_name": "zeppelin",
+  "version": "1.2.0",
+  "description": "Secure Smart Contract library for Solidity",
+  "authors": [
+    "Manuel Araoz <manuelaraoz@gmail.com>"
+  ],
+  "keywords": [
+    "solidity",
+    "ethereum",
+    "smart",
+    "contracts",
+    "security",
+    "zeppelin"
+  ],
+  "license": "MIT"
+}

migrations/1_initial_migration.js

@@ -1,3 +1,5 @@
+var Migrations = artifacts.require("./Migrations.sol");
+
 module.exports = function(deployer) {
   deployer.deploy(Migrations);
 };

migrations/2_deploy_contracts.js

@@ -1,12 +1,5 @@
+//var Ownable = artifacts.require("ownership/Ownable.sol");
+
 module.exports = function(deployer) {
-  deployer.deploy(PullPaymentBid);
-  deployer.deploy(BadArrayUse);
-  deployer.deploy(ProofOfExistence);
-  deployer.deploy(Ownable);
-  deployer.deploy(Claimable);
-  deployer.deploy(LimitBalance);
-  if(deployer.network == 'test'){
-    deployer.deploy(SecureTargetBounty);
-    deployer.deploy(InsecureTargetBounty);
-  };
+  //deployer.deploy(Ownable);
 };

package.json

@@ -1,18 +1,13 @@
 {
   "name": "zeppelin-solidity",
-  "version": "1.0.1",
+  "version": "1.2.0",
   "description": "Secure Smart Contract library for Solidity",
   "main": "truffle.js",
-  "devDependencies": {
-    "babel-preset-es2015": "^6.18.0",
-    "babel-preset-stage-2": "^6.18.0",
-    "babel-preset-stage-3": "^6.17.0",
-    "ethereumjs-testrpc": "^3.0.2",
-    "truffle": "^2.1.1"
-  },
   "scripts": {
-    "test": "truffle test",
-    "install": "scripts/install.sh"
+    "test": "scripts/test.sh",
+    "console": "truffle console",
+    "coverage": "scripts/coverage.sh",
+    "coveralls": "scripts/coveralls.sh"
   },
   "repository": {
     "type": "git",
@@ -31,5 +26,23 @@
   "bugs": {
     "url": "https://github.com/OpenZeppelin/zeppelin-solidity/issues"
   },
-  "homepage": "https://github.com/OpenZeppelin/zeppelin-solidity"
+  "homepage": "https://github.com/OpenZeppelin/zeppelin-solidity",
+  "dependencies": {
+    "truffle-hdwallet-provider": "0.0.3"
+  },
+  "devDependencies": {
+    "babel-preset-es2015": "^6.18.0",
+    "babel-preset-stage-2": "^6.18.0",
+    "babel-preset-stage-3": "^6.17.0",
+    "babel-register": "^6.23.0",
+    "chai": "^4.0.2",
+    "chai-as-promised": "^7.0.0",
+    "chai-bignumber": "^2.0.0",
+    "coveralls": "^2.13.1",
+    "ethereumjs-testrpc": "^3.0.2",
+    "mocha-lcov-reporter": "^1.3.0",
+    "moment": "^2.18.1",
+    "solidity-coverage": "^0.1.7",
+    "truffle": "3.2.2"
+  }
 }

scripts/coverage.sh

@@ -0,0 +1,25 @@
+#! /bin/bash
+
+ 
+
+output=$(nc -z localhost 8555; echo $?)
+[ $output -eq "0" ] && trpc_running=true
+if [ ! $trpc_running ]; then
+  echo "Starting testrpc-sc to generate coverage"
+  # we give each account 1M ether, needed for high-value tests
+  ./node_modules/ethereumjs-testrpc-sc/bin/testrpc --gasLimit 0xfffffffffff --port 8555 \
+    --account="0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501200,1000000000000000000000000"  \
+    --account="0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501201,1000000000000000000000000"  \
+    --account="0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501202,1000000000000000000000000"  \
+    --account="0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501203,1000000000000000000000000"  \
+    --account="0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501204,1000000000000000000000000"  \
+    --account="0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501205,1000000000000000000000000"  \
+    --account="0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501206,1000000000000000000000000"  \
+    --account="0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501207,1000000000000000000000000"  \
+    --account="0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501208,1000000000000000000000000"  \
+    --account="0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501209,1000000000000000000000000"  \
+  > /dev/null &
+  trpc_pid=$!
+fi
+SOLIDITY_COVERAGE=true && ./node_modules/.bin/solidity-coverage
+

scripts/coveralls.sh

@@ -0,0 +1,4 @@
+#! /bin/bash
+
+yarn run coverage && cat coverage/lcov.info | ./node_modules/coveralls/bin/coveralls.js
+

scripts/install.sh

@@ -1,3 +0,0 @@
-#! /bin/bash
-
-mkdir -p ../../contracts/zeppelin && cp -r contracts/* "$_"

scripts/test.sh

@@ -0,0 +1,25 @@
+#! /bin/bash
+
+output=$(nc -z localhost 8545; echo $?)
+[ $output -eq "0" ] && trpc_running=true
+if [ ! $trpc_running ]; then
+  echo "Starting our own testrpc node instance"
+  # we give each account 1M ether, needed for high-value tests
+  testrpc \
+    --account="0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501200,1000000000000000000000000"  \
+    --account="0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501201,1000000000000000000000000"  \
+    --account="0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501202,1000000000000000000000000"  \
+    --account="0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501203,1000000000000000000000000"  \
+    --account="0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501204,1000000000000000000000000"  \
+    --account="0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501205,1000000000000000000000000"  \
+    --account="0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501206,1000000000000000000000000"  \
+    --account="0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501207,1000000000000000000000000"  \
+    --account="0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501208,1000000000000000000000000"  \
+    --account="0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501209,1000000000000000000000000"  \
+  > /dev/null &
+  trpc_pid=$!
+fi
+./node_modules/truffle/cli.js test "$@"
+if [ ! $trpc_running ]; then
+  kill -9 $trpc_pid
+fi

test/BasicToken.js

@@ -1,5 +1,7 @@
 const assertJump = require('./helpers/assertJump');
 
+var BasicTokenMock = artifacts.require("./helpers/BasicTokenMock.sol");
+
 contract('BasicToken', function(accounts) {
 
   it("should return the correct totalSupply after construction", async function() {
@@ -25,8 +27,9 @@ contract('BasicToken', function(accounts) {
     try {
       let transfer = await token.transfer(accounts[1], 101);
     } catch(error) {
-      assertJump(error);
+      return assertJump(error);
     }
+    assert.fail('should have thrown before');
   });
 
 });

test/Bounty.js

@@ -1,115 +1,115 @@
+'use strict';
+
 let sendReward = function(sender, receiver, value){
   web3.eth.sendTransaction({
     from:sender,
     to:receiver,
     value: value
-  })
+  });
+};
+var SecureTargetBounty = artifacts.require('helpers/SecureTargetBounty.sol');
+var InsecureTargetBounty = artifacts.require('helpers/InsecureTargetBounty.sol');
+
+function awaitEvent(event, handler) {
+  return new Promise((resolve, reject) => {
+    function wrappedHandler(...args) {
+      Promise.resolve(handler(...args)).then(resolve).catch(reject);
+    }
+  
+    event.watch(wrappedHandler);
+  });
 }
 
 contract('Bounty', function(accounts) {
 
-  it("sets reward", async function(){
+  it('sets reward', async function() {
     let owner = accounts[0];
-    let reward = web3.toWei(1, "ether");
+    let reward = web3.toWei(1, 'ether');
     let bounty = await SecureTargetBounty.new();
     sendReward(owner, bounty.address, reward);
 
     assert.equal(reward, web3.eth.getBalance(bounty.address).toNumber());
-  })
+  });
 
-  it("empties itself when killed", async function(){
+  it('empties itself when destroyed', async function(){
     let owner = accounts[0];
-    let reward = web3.toWei(1, "ether");
+    let reward = web3.toWei(1, 'ether');
     let bounty = await SecureTargetBounty.new();
     sendReward(owner, bounty.address, reward);
 
     assert.equal(reward, web3.eth.getBalance(bounty.address).toNumber());
 
-    await bounty.kill();
+    await bounty.destroy();
     assert.equal(0, web3.eth.getBalance(bounty.address).toNumber());
-  })
+  });
 
-  describe("Against secure contract", function(){
+  describe('Against secure contract', function(){
 
-    it("checkInvariant returns true", async function(){
-      let bounty = await SecureTargetBounty.new();
-      let target = await bounty.createTarget();
-      let check = await bounty.checkInvariant.call();
-
-      assert.isTrue(check);
-    })
-
-    it("cannot claim reward", async function(done){
+    it('cannot claim reward', async function(){
       let owner = accounts[0];
       let researcher = accounts[1];
-      let reward = web3.toWei(1, "ether");
+      let reward = web3.toWei(1, 'ether');
       let bounty = await SecureTargetBounty.new();
       let event = bounty.TargetCreated({});
 
-      event.watch(async function(err, result) {
+      let watcher = async function(err, result) {
         event.stopWatching();
-        if (err) { throw err }
+        if (err) { throw err; }
 
         var targetAddress = result.args.createdAddress;
         sendReward(owner, bounty.address, reward);
 
-        assert.equal(reward, web3.eth.getBalance(bounty.address).toNumber())
+        assert.equal(reward,
+          web3.eth.getBalance(bounty.address).toNumber());
 
         try {
-          let tmpClain = await bounty.claim(targetAddress, {from:researcher});
-          done("should not come here");
+          await bounty.claim(targetAddress, {from:researcher});
+          assert.isTrue(false); // should never reach here
         } catch(error) {
-            let reClaimedBounty = await bounty.claimed.call();
-            assert.isFalse(reClaimedBounty);
+          let reClaimedBounty = await bounty.claimed.call();
+          assert.isFalse(reClaimedBounty);
 
-            try {
-              let withdraw = await bounty.withdrawPayments({from:researcher});
-              done("should not come here")
-            } catch (err) {
-              assert.equal(reward, web3.eth.getBalance(bounty.address).toNumber());
-              done();
-            }
-        }//end of first try catch
-      });
+        }
+        try {
+          await bounty.withdrawPayments({from:researcher});
+          assert.isTrue(false); // should never reach here
+        } catch (err) {
+          assert.equal(reward,
+            web3.eth.getBalance(bounty.address).toNumber());
+        }
+      };
       bounty.createTarget({from:researcher});
-    })
-  })
+      await awaitEvent(event, watcher);
+    });
+  });
 
-  describe("Against broken contract", function(){
-    it("checkInvariant returns false", async function(){
-      let bounty = await InsecureTargetBounty.new();
-      let target = await bounty.createTarget();
-      let invariantCall = await bounty.checkInvariant.call();
-
-      assert.isFalse(invariantCall);
-    })
-
-    it("claims reward", async function(done){
+  describe('Against broken contract', function(){
+    it('claims reward', async function() {
       let owner = accounts[0];
       let researcher = accounts[1];
-      let reward = web3.toWei(1, "ether");
+      let reward = web3.toWei(1, 'ether');
       let bounty = await InsecureTargetBounty.new();
       let event = bounty.TargetCreated({});
-
-      event.watch(async function(err, result) {
+      
+      let watcher = async function(err, result) {
         event.stopWatching();
-        if (err) { throw err }
+        if (err) { throw err; }
         let targetAddress = result.args.createdAddress;
         sendReward(owner, bounty.address, reward);
 
         assert.equal(reward, web3.eth.getBalance(bounty.address).toNumber());
 
-        let bountyClaim = await bounty.claim(targetAddress, {from:researcher});
+        await bounty.claim(targetAddress, {from:researcher});
         let claim = await bounty.claimed.call();
 
         assert.isTrue(claim);
 
-        let payment = await bounty.withdrawPayments({from:researcher});
+        await bounty.withdrawPayments({from:researcher});
 
         assert.equal(0, web3.eth.getBalance(bounty.address).toNumber());
-        done();
-      })
+      };
       bounty.createTarget({from:researcher});
-    })
-  })
+      await awaitEvent(event, watcher);
+    });
+  });
 });

test/CappedCrowdsale.js

@@ -0,0 +1,90 @@
+import ether from './helpers/ether'
+import advanceToBlock from './helpers/advanceToBlock'
+import EVMThrow from './helpers/EVMThrow'
+
+const BigNumber = web3.BigNumber
+
+require('chai')
+  .use(require('chai-as-promised'))
+  .use(require('chai-bignumber')(BigNumber))
+  .should()
+
+const CappedCrowdsale = artifacts.require('./helpers/CappedCrowdsaleImpl.sol')
+const MintableToken = artifacts.require('MintableToken')
+
+contract('CappedCrowdsale', function ([_, wallet]) {
+
+  const rate = new BigNumber(1000)
+
+  const cap = ether(300)
+  const lessThanCap = ether(60)
+
+  describe('creating a valid crowdsale', function () {
+
+    it('should fail with zero cap', async function () {
+      await CappedCrowdsale.new(this.startBlock, this.endBlock, rate, wallet, 0).should.be.rejectedWith(EVMThrow);
+    })
+
+  });
+
+
+  beforeEach(async function () {
+    this.startBlock = web3.eth.blockNumber + 10
+    this.endBlock =   web3.eth.blockNumber + 20
+
+    this.crowdsale = await CappedCrowdsale.new(this.startBlock, this.endBlock, rate, wallet, cap)
+
+    this.token = MintableToken.at(await this.crowdsale.token())
+  })
+
+  describe('accepting payments', function () {
+
+    beforeEach(async function () {
+      await advanceToBlock(this.startBlock - 1)
+    })
+
+    it('should accept payments within cap', async function () {
+      await this.crowdsale.send(cap.minus(lessThanCap)).should.be.fulfilled
+      await this.crowdsale.send(lessThanCap).should.be.fulfilled
+    })
+
+    it('should reject payments outside cap', async function () {
+      await this.crowdsale.send(cap)
+      await this.crowdsale.send(1).should.be.rejectedWith(EVMThrow)
+    })
+
+    it('should reject payments that exceed cap', async function () {
+      await this.crowdsale.send(cap.plus(1)).should.be.rejectedWith(EVMThrow)
+    })
+
+  })
+
+  describe('ending', function () {
+
+    beforeEach(async function () {
+      await advanceToBlock(this.startBlock - 1)
+    })
+
+    it('should not be ended if under cap', async function () {
+      let hasEnded = await this.crowdsale.hasEnded()
+      hasEnded.should.equal(false)
+      await this.crowdsale.send(lessThanCap)
+      hasEnded = await this.crowdsale.hasEnded()
+      hasEnded.should.equal(false)
+    })
+
+    it('should not be ended if just under cap', async function () {
+      await this.crowdsale.send(cap.minus(1))
+      let hasEnded = await this.crowdsale.hasEnded()
+      hasEnded.should.equal(false)
+    })
+
+    it('should be ended if cap reached', async function () {
+      await this.crowdsale.send(cap)
+      let hasEnded = await this.crowdsale.hasEnded()
+      hasEnded.should.equal(true)
+    })
+
+  })
+
+})

test/Claimable.js

@@ -1,3 +1,8 @@
+'use strict';
+const assertJump = require('./helpers/assertJump');
+
+var Claimable = artifacts.require('../contracts/ownership/Claimable.sol');
+
 contract('Claimable', function(accounts) {
   let claimable;
 
@@ -5,34 +10,39 @@ contract('Claimable', function(accounts) {
     claimable = await Claimable.new();
   });
 
-  it("should have an owner", async function() {
+  it('should have an owner', async function() {
     let owner = await claimable.owner();
-    assert.isTrue(owner != 0);
+    assert.isTrue(owner !== 0);
   });
 
-  it("changes pendingOwner after transfer", async function() {
+  it('changes pendingOwner after transfer', async function() {
     let newOwner = accounts[1];
-    let transfer = await claimable.transferOwnership(newOwner);
+    await claimable.transferOwnership(newOwner);
     let pendingOwner = await claimable.pendingOwner();
 
     assert.isTrue(pendingOwner === newOwner);
   });
 
-  it("should prevent to claimOwnership from no pendingOwner", async function() {
-    let claimedOwner = await claimable.claimOwnership({from: accounts[2]});
-    let owner = await claimable.owner();
-
-    assert.isTrue(owner != accounts[2]);
+  it('should prevent to claimOwnership from no pendingOwner', async function() {
+    try {
+        await claimable.claimOwnership({from: accounts[2]});
+    } catch(error) {
+        assertJump(error);
+    }
   });
 
-  it("should prevent non-owners from transfering", async function() {
-    let transfer = await claimable.transferOwnership(accounts[2], {from: accounts[2]});
-    let pendingOwner = await claimable.pendingOwner();
-
-    assert.isFalse(pendingOwner === accounts[2]);
+  it('should prevent non-owners from transfering', async function() {
+    const other = accounts[2];
+    const owner = await claimable.owner.call();
+    assert.isTrue(owner !== other);
+    try {
+        await claimable.transferOwnership(other, {from: other});
+    } catch(error) {
+        assertJump(error);
+    }
   });
 
-  describe("after initiating a transfer", function () {
+  describe('after initiating a transfer', function () {
     let newOwner;
 
     beforeEach(async function () {
@@ -40,8 +50,8 @@ contract('Claimable', function(accounts) {
       await claimable.transferOwnership(newOwner);
     });
 
-    it("changes allow pending owner to claim ownership", async function() {
-      let claimedOwner = await claimable.claimOwnership({from: newOwner})
+    it('changes allow pending owner to claim ownership', async function() {
+      await claimable.claimOwnership({from: newOwner});
       let owner = await claimable.owner();
 
       assert.isTrue(owner === newOwner);

test/Contactable.js

@@ -0,0 +1,30 @@
+'use strict';
+const assertJump = require('./helpers/assertJump');
+
+var Contactable = artifacts.require('../contracts/ownership/Contactable.sol');
+
+contract('Contactable', function(accounts) {
+  let contactable;
+
+  beforeEach(async function() {
+    contactable = await Contactable.new();
+  });
+
+  it('should have an empty contact info', async function() {
+    let info = await contactable.contactInformation();
+    assert.isTrue(info == "");
+  });
+
+  describe('after setting the contact information', function () {
+    let contactInfo = "contact information"
+
+    beforeEach(async function () {
+      await contactable.setContactInformation(contactInfo);
+    });
+
+    it('should return the setted contact information', async function() {
+      let info = await contactable.contactInformation();
+      assert.isTrue(info === contactInfo);
+   });
+  });
+});

test/Crowdsale.js

@@ -0,0 +1,143 @@
+import ether from './helpers/ether'
+import advanceToBlock from './helpers/advanceToBlock'
+import EVMThrow from './helpers/EVMThrow'
+
+const BigNumber = web3.BigNumber
+
+const should = require('chai')
+  .use(require('chai-as-promised'))
+  .use(require('chai-bignumber')(BigNumber))
+  .should()
+
+const Crowdsale = artifacts.require('Crowdsale')
+const MintableToken = artifacts.require('MintableToken')
+
+contract('Crowdsale', function ([_, investor, wallet, purchaser]) {
+
+  const rate = new BigNumber(1000)
+  const value = ether(42)
+
+  const expectedTokenAmount = rate.mul(value)
+
+  beforeEach(async function () {
+    this.startBlock = web3.eth.blockNumber + 10
+    this.endBlock =   web3.eth.blockNumber + 20
+
+    this.crowdsale = await Crowdsale.new(this.startBlock, this.endBlock, rate, wallet)
+
+    this.token = MintableToken.at(await this.crowdsale.token())
+  })
+
+  it('should be token owner', async function () {
+    const owner = await this.token.owner()
+    owner.should.equal(this.crowdsale.address)
+  })
+
+  it('should be ended only after end', async function () {
+    let ended = await this.crowdsale.hasEnded()
+    ended.should.equal(false)
+    await advanceToBlock(this.endBlock + 1)
+    ended = await this.crowdsale.hasEnded()
+    ended.should.equal(true)
+  })
+
+  describe('accepting payments', function () {
+
+    it('should reject payments before start', async function () {
+      await this.crowdsale.send(value).should.be.rejectedWith(EVMThrow)
+      await this.crowdsale.buyTokens(investor, value, {from: purchaser}).should.be.rejectedWith(EVMThrow)
+    })
+
+    it('should accept payments after start', async function () {
+      await advanceToBlock(this.startBlock - 1)
+      await this.crowdsale.send(value).should.be.fulfilled
+      await this.crowdsale.buyTokens(investor, {value: value, from: purchaser}).should.be.fulfilled
+    })
+
+    it('should reject payments after end', async function () {
+      await advanceToBlock(this.endBlock)
+      await this.crowdsale.send(value).should.be.rejectedWith(EVMThrow)
+      await this.crowdsale.buyTokens(investor, {value: value, from: purchaser}).should.be.rejectedWith(EVMThrow)
+    })
+
+  })
+
+  describe('high-level purchase', function () {
+
+    beforeEach(async function() {
+      await advanceToBlock(this.startBlock)
+    })
+
+    it('should log purchase', async function () {
+      const {logs} = await this.crowdsale.sendTransaction({value: value, from: investor})
+
+      const event = logs.find(e => e.event === 'TokenPurchase')
+
+      should.exist(event)
+      event.args.purchaser.should.equal(investor)
+      event.args.beneficiary.should.equal(investor)
+      event.args.value.should.be.bignumber.equal(value)
+      event.args.amount.should.be.bignumber.equal(expectedTokenAmount)
+    })
+
+    it('should increase totalSupply', async function () {
+      await this.crowdsale.send(value)
+      const totalSupply = await this.token.totalSupply()
+      totalSupply.should.be.bignumber.equal(expectedTokenAmount)
+    })
+
+    it('should assign tokens to sender', async function () {
+      await this.crowdsale.sendTransaction({value: value, from: investor})
+      let balance = await this.token.balanceOf(investor);
+      balance.should.be.bignumber.equal(expectedTokenAmount)
+    })
+
+    it('should forward funds to wallet', async function () {
+      const pre = web3.eth.getBalance(wallet)
+      await this.crowdsale.sendTransaction({value, from: investor})
+      const post = web3.eth.getBalance(wallet)
+      post.minus(pre).should.be.bignumber.equal(value)
+    })
+
+  })
+
+  describe('low-level purchase', function () {
+
+    beforeEach(async function() {
+      await advanceToBlock(this.startBlock)
+    })
+
+    it('should log purchase', async function () {
+      const {logs} = await this.crowdsale.buyTokens(investor, {value: value, from: purchaser})
+
+      const event = logs.find(e => e.event === 'TokenPurchase')
+
+      should.exist(event)
+      event.args.purchaser.should.equal(purchaser)
+      event.args.beneficiary.should.equal(investor)
+      event.args.value.should.be.bignumber.equal(value)
+      event.args.amount.should.be.bignumber.equal(expectedTokenAmount)
+    })
+
+    it('should increase totalSupply', async function () {
+      await this.crowdsale.buyTokens(investor, {value, from: purchaser})
+      const totalSupply = await this.token.totalSupply()
+      totalSupply.should.be.bignumber.equal(expectedTokenAmount)
+    })
+
+    it('should assign tokens to beneficiary', async function () {
+      await this.crowdsale.buyTokens(investor, {value, from: purchaser})
+      const balance = await this.token.balanceOf(investor)
+      balance.should.be.bignumber.equal(expectedTokenAmount)
+    })
+
+    it('should forward funds to wallet', async function () {
+      const pre = web3.eth.getBalance(wallet)
+      await this.crowdsale.buyTokens(investor, {value, from: purchaser})
+      const post = web3.eth.getBalance(wallet)
+      post.minus(pre).should.be.bignumber.equal(value)
+    })
+
+  })
+
+})

test/DayLimit.js

@@ -1,4 +1,11 @@
+'use strict';
+const assertJump = require('./helpers/assertJump');
+const timer = require('./helpers/timer');
+
+var DayLimitMock = artifacts.require('./helpers/DayLimitMock.sol');
+
 contract('DayLimit', function(accounts) {
+  const day = 60 * 60 * 24;
 
   it('should construct with the passed daily limit', async function() {
     let initLimit = 10;
@@ -28,9 +35,11 @@ contract('DayLimit', function(accounts) {
     let spentToday = await dayLimit.spentToday();
     assert.equal(spentToday, 8);
 
-    await dayLimit.attemptSpend(3);
-    spentToday = await dayLimit.spentToday();
-    assert.equal(spentToday, 8);
+    try {
+        await dayLimit.attemptSpend(3);
+    } catch(error) {
+        assertJump(error);
+    }
   });
 
   it('should allow spending if daily limit is reached and then set higher', async function() {
@@ -41,7 +50,11 @@ contract('DayLimit', function(accounts) {
     let spentToday = await dayLimit.spentToday();
     assert.equal(spentToday, 8);
 
-    await dayLimit.attemptSpend(3);
+    try {
+        await dayLimit.attemptSpend(3);
+    } catch(error) {
+        assertJump(error);
+    }
     spentToday = await dayLimit.spentToday();
     assert.equal(spentToday, 8);
 
@@ -59,7 +72,11 @@ contract('DayLimit', function(accounts) {
     let spentToday = await dayLimit.spentToday();
     assert.equal(spentToday, 8);
 
-    await dayLimit.attemptSpend(3);
+    try {
+        await dayLimit.attemptSpend(3);
+    } catch(error) {
+        assertJump(error);
+    }
     spentToday = await dayLimit.spentToday();
     assert.equal(spentToday, 8);
 
@@ -69,4 +86,27 @@ contract('DayLimit', function(accounts) {
     assert.equal(spentToday, 3);
   });
 
+  it('should allow spending if daily limit is reached and then the next has come', async function() {
+    let limit = 10;
+    let dayLimit = await DayLimitMock.new(limit);
+
+    await dayLimit.attemptSpend(8);
+    let spentToday = await dayLimit.spentToday();
+    assert.equal(spentToday, 8);
+
+    try {
+      await dayLimit.attemptSpend(3);
+    } catch(error) {
+      assertJump(error);
+    }
+    spentToday = await dayLimit.spentToday();
+    assert.equal(spentToday, 8);
+
+    await timer(day);
+
+    await dayLimit.attemptSpend(3);
+    spentToday = await dayLimit.spentToday();
+    assert.equal(spentToday, 3);
+  });
+
 });

test/DelayedClaimble.js

@@ -1,3 +1,7 @@
+'use strict';
+
+var DelayedClaimable = artifacts.require('../contracts/ownership/DelayedClaimable.sol');
+
 contract('DelayedClaimable', function(accounts) {
   var delayedClaimable;
 
@@ -7,76 +11,58 @@ contract('DelayedClaimable', function(accounts) {
     });
   });
 
-  it("Changes pendingOwner after transfer succesfull", function(done) {
-    return delayedClaimable.transferOwnership(accounts[2])
-      .then(function(){
-        return delayedClaimable.setClaimBlocks(1000,0);
-      })
-      .then(function(){
-        return delayedClaimable.claimBeforeBlock();
-      })
-      .then(function(claimBeforeBlock) {
-        assert.isTrue(claimBeforeBlock == 1000);
-        return delayedClaimable.claimAfterBlock();
-      })
-      .then(function(claimAfterBlock) {
-        assert.isTrue(claimAfterBlock == 0);
-        return delayedClaimable.pendingOwner();
-      })
-      .then(function(pendingOwner) {
-        assert.isTrue(pendingOwner === accounts[2]);
-        return delayedClaimable.claimOwnership({from: accounts[2]});
-      })
-      .then(function() {
-        return delayedClaimable.owner();
-      })
-      .then(function(owner) {
-        assert.isTrue(owner === accounts[2]);
-      })
-      .then(done);
+  it('can set claim blocks', async function() {
+    await delayedClaimable.transferOwnership(accounts[2]);
+    await delayedClaimable.setLimits(0, 1000);
+    let end = await delayedClaimable.end();
+    assert.equal(end, 1000);
+    let start = await delayedClaimable.start();
+    assert.equal(start, 0);
   });
 
-  it("Changes pendingOwner after transfer fails", function(done) {
-    return delayedClaimable.transferOwnership(accounts[1])
-      .then(function(){
-        return delayedClaimable.setClaimBlocks(11000,10000);
-      })
-      .then(function(){
-        return delayedClaimable.claimBeforeBlock();
-      })
-      .then(function(claimBeforeBlock) {
-        assert.isTrue(claimBeforeBlock == 11000);
-        return delayedClaimable.claimAfterBlock();
-      })
-      .then(function(claimAfterBlock) {
-        assert.isTrue(claimAfterBlock == 10000);
-        return delayedClaimable.pendingOwner();
-      })
-      .then(function(pendingOwner) {
-        assert.isTrue(pendingOwner === accounts[1]);
-        return delayedClaimable.claimOwnership({from: accounts[1]});
-      })
-      .catch(function(error) {
-        if (error.message.search('invalid JUMP') == -1) throw error;
-      })
-      .then(function() {
-        return delayedClaimable.owner();
-      })
-      .then(function(owner) {
-        assert.isTrue(owner != accounts[1]);
-      })
-      .then(done);
+  it('changes pendingOwner after transfer successful', async function() {
+    await delayedClaimable.transferOwnership(accounts[2]);
+    await delayedClaimable.setLimits(0, 1000);
+    let end = await delayedClaimable.end();
+    assert.equal(end, 1000);
+    let start = await delayedClaimable.start();
+    assert.equal(start, 0);
+    let pendingOwner = await delayedClaimable.pendingOwner();
+    assert.equal(pendingOwner, accounts[2]);
+    await delayedClaimable.claimOwnership({from: accounts[2]});
+    let owner = await delayedClaimable.owner();
+    assert.equal(owner, accounts[2]);
   });
 
-  it("Set claimBeforeBlock and claimAfterBlock invalid values fail", function(done) {
-    return delayedClaimable.transferOwnership(accounts[1])
-      .then(function(){
-        return delayedClaimable.setClaimBlocks(1000,10000);
-      })
-      .catch(function(error) {
-        if (error.message.search('invalid JUMP') == -1) throw error;
-      })
-      .then(done);
+  it('changes pendingOwner after transfer fails', async function() {
+    await delayedClaimable.transferOwnership(accounts[1]);
+    await delayedClaimable.setLimits(100, 110);
+    let end = await delayedClaimable.end();
+    assert.equal(end, 110);
+    let start = await delayedClaimable.start();
+    assert.equal(start, 100);
+    let pendingOwner = await delayedClaimable.pendingOwner();
+    assert.equal(pendingOwner, accounts[1]);
+    var err = null;
+    try {
+      await delayedClaimable.claimOwnership({from: accounts[1]});
+    } catch (error) {
+      err = error;
+    }
+    assert.isFalse(err.message.search('invalid opcode') === -1);
+    let owner = await delayedClaimable.owner();
+    assert.isTrue(owner !== accounts[1]);
+  });
+
+  it('set end and start invalid values fail', async function() {
+    await delayedClaimable.transferOwnership(accounts[1]);
+    var err = null;
+    try {
+      await delayedClaimable.setLimits(1001, 1000);
+    } catch (error) {
+      err = error;
+    }
+    assert.isFalse(err.message.search('invalid opcode') === -1);
   });
 
 });

test/Destructible.js

@@ -0,0 +1,26 @@
+'use strict';
+
+var Destructible = artifacts.require('../contracts/lifecycle/Destructible.sol');
+require('./helpers/transactionMined.js');
+
+contract('Destructible', function(accounts) {
+
+  it('should send balance to owner after destruction', async function() {
+    let destructible = await Destructible.new({from: accounts[0], value: web3.toWei('10','ether')});
+    let owner = await destructible.owner();
+    let initBalance = web3.eth.getBalance(owner);
+    await destructible.destroy({from: owner});
+    let newBalance = web3.eth.getBalance(owner);
+    assert.isTrue(newBalance > initBalance);
+  });
+
+  it('should send balance to recepient after destruction', async function() {
+    let destructible = await Destructible.new({from: accounts[0], value: web3.toWei('10','ether')});
+    let owner = await destructible.owner();
+    let initBalance = web3.eth.getBalance(accounts[1]);
+    await destructible.destroyAndSend(accounts[1], {from: owner} );
+    let newBalance = web3.eth.getBalance(accounts[1]);
+    assert.isTrue(newBalance.greaterThan(initBalance));
+  });
+
+});

test/ECRecovery.js

@@ -0,0 +1,55 @@
+var ECRecovery = artifacts.require("../contracts/ECRecovery.sol");
+var utils = require('ethereumjs-util');
+var hashMessage = require('./helpers/hashMessage.js');
+
+contract('ECRecovery', function(accounts) {
+
+  let ecrecovery;
+
+  before(async function() {
+    ecrecovery = await ECRecovery.new();
+  });
+
+  it("recover v0", async function() {
+    // Signature generated outside testrpc with method web3.eth.sign(signer, message)
+    let signer = '0x2cc1166f6212628a0deef2b33befb2187d35b86c';
+    let message = '0x7dbaf558b0a1a5dc7a67202117ab143c1d8605a983e4a743bc06fcc03162dc0d'; // web3.sha3('OpenZeppelin')
+    let signature = '0x5d99b6f7f6d1f73d1a26497f2b1c89b24c0993913f86e9a2d02cd69887d9c94f3c880358579d811b21dd1b7fd9bb01c1d81d10e69f0384e675c32b39643be89200';
+    assert.equal(signer, await ecrecovery.recover(message, signature));
+  });
+
+  it("recover v1", async function() {
+    // Signature generated outside testrpc with method web3.eth.sign(signer, message)
+    let signer = '0x1e318623ab09fe6de3c9b8672098464aeda9100e';
+    let message = '0x7dbaf558b0a1a5dc7a67202117ab143c1d8605a983e4a743bc06fcc03162dc0d'; // web3.sha3('OpenZeppelin')
+    let signature = '0x331fe75a821c982f9127538858900d87d3ec1f9f737338ad67cad133fa48feff48e6fa0c18abc62e42820f05943e47af3e9fbe306ce74d64094bdf1691ee53e001';
+    assert.equal(signer, await ecrecovery.recover(message, signature));
+  });
+
+  it("recover using web3.eth.sign()", async function() {
+    // Create the signature using account[0]
+    const signature = web3.eth.sign(web3.eth.accounts[0], web3.sha3('OpenZeppelin'));
+
+    // Recover the signer address form the generated message and signature.
+    assert.equal(web3.eth.accounts[0], await ecrecovery.recover(hashMessage('OpenZeppelin'), signature));
+  });
+
+  it("recover using web3.eth.sign() should return wrong signer", async function() {
+    // Create the signature using account[0]
+    const signature = web3.eth.sign(web3.eth.accounts[0], web3.sha3('OpenZeppelin'));
+
+    // Recover the signer address form the generated message and wrong signature.
+    assert.notEqual(web3.eth.accounts[0], await ecrecovery.recover(hashMessage('Test'), signature));
+  });
+
+  it("recover should fail when a wrong hash is sent", async function() {
+    // Create the signature using account[0]
+    let signature = web3.eth.sign(web3.eth.accounts[0], web3.sha3('OpenZeppelin'));
+
+    // Recover the signer address form the generated message and wrong signature.
+    assert.equal('0x0000000000000000000000000000000000000000',
+      await ecrecovery.recover(hashMessage('OpenZeppelin').substring(2), signature)
+    );
+  });
+
+});

test/FinalizableCrowdsale.js

@@ -0,0 +1,61 @@
+import advanceToBlock from './helpers/advanceToBlock'
+import EVMThrow from './helpers/EVMThrow'
+
+const BigNumber = web3.BigNumber
+
+const should = require('chai')
+  .use(require('chai-as-promised'))
+  .use(require('chai-bignumber')(BigNumber))
+  .should()
+
+const FinalizableCrowdsale = artifacts.require('./helpers/FinalizableCrowdsaleImpl.sol')
+const MintableToken = artifacts.require('MintableToken')
+
+contract('FinalizableCrowdsale', function ([_, owner, wallet, thirdparty]) {
+
+  const rate = new BigNumber(1000)
+
+  beforeEach(async function () {
+    this.startBlock = web3.eth.blockNumber + 10
+    this.endBlock = web3.eth.blockNumber + 20
+
+    this.crowdsale = await FinalizableCrowdsale.new(this.startBlock, this.endBlock, rate, wallet, {from: owner})
+
+    this.token = MintableToken.at(await this.crowdsale.token())
+  })
+
+  it('cannot be finalized before ending', async function () {
+    await this.crowdsale.finalize({from: owner}).should.be.rejectedWith(EVMThrow)
+  })
+
+  it('cannot be finalized by third party after ending', async function () {
+    await advanceToBlock(this.endBlock)
+    await this.crowdsale.finalize({from: thirdparty}).should.be.rejectedWith(EVMThrow)
+  })
+
+  it('can be finalized by owner after ending', async function () {
+    await advanceToBlock(this.endBlock)
+    await this.crowdsale.finalize({from: owner}).should.be.fulfilled
+  })
+
+  it('cannot be finalized twice', async function () {
+    await advanceToBlock(this.endBlock + 1)
+    await this.crowdsale.finalize({from: owner})
+    await this.crowdsale.finalize({from: owner}).should.be.rejectedWith(EVMThrow)
+  })
+
+  it('logs finalized', async function () {
+    await advanceToBlock(this.endBlock)
+    const {logs} = await this.crowdsale.finalize({from: owner})
+    const event = logs.find(e => e.event === 'Finalized')
+    should.exist(event)
+  })
+
+  it('finishes minting of token', async function () {
+    await advanceToBlock(this.endBlock)
+    await this.crowdsale.finalize({from: owner})
+    const finished = await this.token.mintingFinished()
+    finished.should.equal(true)
+  })
+
+})

test/HasNoContracts.js

@@ -0,0 +1,35 @@
+'use strict';
+import expectThrow from './helpers/expectThrow';
+import toPromise from './helpers/toPromise';
+const Ownable = artifacts.require('../contracts/ownership/Ownable.sol');
+const HasNoContracts = artifacts.require(
+  '../contracts/ownership/HasNoContracts.sol',
+);
+
+contract('HasNoContracts', function(accounts) {
+  let hasNoContracts = null;
+  let ownable = null;
+
+  beforeEach(async () => {
+    // Create contract and token
+    hasNoContracts = await HasNoContracts.new();
+    ownable = await Ownable.new();
+
+    // Force ownership into contract
+    await ownable.transferOwnership(hasNoContracts.address);
+    const owner = await ownable.owner();
+    assert.equal(owner, hasNoContracts.address);
+  });
+
+  it('should allow owner to reclaim contracts', async function() {
+    await hasNoContracts.reclaimContract(ownable.address);
+    const owner = await ownable.owner();
+    assert.equal(owner, accounts[0]);
+  });
+
+  it('should allow only owner to reclaim contracts', async function() {
+    await expectThrow(
+      hasNoContracts.reclaimContract(ownable.address, {from: accounts[1]}),
+    );
+  });
+});