v1.1.0

Fix references to SafeMath in crowdsale contracts

.coveralls.yml

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

.travis.yml

@@ -4,9 +4,9 @@ group: beta
 language: node_js
 node_js:
   - "6"
-before_install:
-  - npm install truffle@3.1.9 -g
-  - npm i -g ethereumjs-testrpc
+cache:
+  yarn: true
 script:
-  - testrpc > /dev/null &
-  - truffle test
+  - yarn test
+after_script:
+  - yarn run coveralls

README.md

@@ -1,6 +1,7 @@
 # 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)
 
 OpenZeppelin is a library for writing secure [Smart Contracts](https://en.wikipedia.org/wiki/Smart_contract) on Ethereum.
 
@@ -23,6 +24,9 @@ truffle init
 To install the OpenZeppelin library, run:
 ```sh
 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 `node_modules/zeppelin-solidity/contracts` folder. You can use the contracts in the library like so:

audit/ZeppelinAudit.md

@@ -48,7 +48,7 @@ We think much more could be done here, and recommend the OpenZeppelin team keep
 
 ## Solidity Version Updates Recommended
 
-Most of the code uses Solidity 0.4.8, but some files under `Ownership` are marked 0.4.0. These should be updated.
+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:
 

contracts/Bounty.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.4.8;
+pragma solidity ^0.4.11;
 
 
 import './payment/PullPayment.sol';

contracts/DayLimit.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.4.8;
+pragma solidity ^0.4.11;
 
 /**
  * @title DayLimit
@@ -7,24 +7,24 @@ pragma solidity ^0.4.8;
  */
 contract DayLimit {
 
-  uint public dailyLimit;
-  uint public spentToday;
-  uint public lastDay;
+  uint256 public dailyLimit;
+  uint256 public spentToday;
+  uint256 public lastDay;
 
   /**
    * @dev Constructor that sets the passed value as a dailyLimit.
-   * @param _limit Uint to represent the daily limit.
+   * @param _limit uint256 to represent the daily limit.
    */
-  function DayLimit(uint _limit) {
+  function DayLimit(uint256 _limit) {
     dailyLimit = _limit;
     lastDay = today();
   }
 
   /**
    * @dev sets the daily limit. Does not alter the amount already spent today.
-   * @param _newLimit Uint to represent the new limit.
+   * @param _newLimit uint256 to represent the new limit.
    */
-  function _setDailyLimit(uint _newLimit) internal {
+  function _setDailyLimit(uint256 _newLimit) internal {
     dailyLimit = _newLimit;
   }
 
@@ -37,10 +37,10 @@ contract DayLimit {
 
   /**
    * @dev Checks to see if there is enough resource to spend today. If true, the resource may be expended.
-   * @param _value Uint representing the amount of resource to spend.
+   * @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(uint _value) internal returns (bool) {
+  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;
@@ -57,16 +57,16 @@ contract DayLimit {
 
   /**
    * @dev Private function to determine today's index
-   * @return Uint of today's index.
+   * @return uint256 of today's index.
    */
-  function today() private constant returns (uint) {
+  function today() private constant returns (uint256) {
     return now / 1 days;
   }
 
   /**
    * @dev Simple modifier for daily limit.
    */
-  modifier limitedDaily(uint _value) {
+  modifier limitedDaily(uint256 _value) {
     if (!underLimit(_value)) {
       throw;
     }

contracts/LimitBalance.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.4.8;
+pragma solidity ^0.4.11;
 
 
 /**
@@ -9,13 +9,13 @@ pragma solidity ^0.4.8;
  */
 contract LimitBalance {
 
-  uint public limit;
+  uint256 public limit;
 
   /**
    * @dev Constructor that sets the passed value as a limit. 
-   * @param _limit Uint to represent the limit.
+   * @param _limit uint256 to represent the limit.
    */
-  function LimitBalance(uint _limit) {
+  function LimitBalance(uint256 _limit) {
     limit = _limit;
   }
 

contracts/MultisigWallet.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.4.8;
+pragma solidity ^0.4.11;
 
 
 import "./ownership/Multisig.sol";
@@ -16,7 +16,7 @@ contract MultisigWallet is Multisig, Shareable, DayLimit {
 
   struct Transaction {
     address to;
-    uint value;
+    uint256 value;
     bytes data;
   }
 
@@ -25,7 +25,7 @@ contract MultisigWallet is Multisig, Shareable, DayLimit {
    * @param _owners A list of owners.
    * @param _required The amount required for a transaction to be approved.
    */
-  function MultisigWallet(address[] _owners, uint _required, uint _daylimit)       
+  function MultisigWallet(address[] _owners, uint256 _required, uint256 _daylimit)       
     Shareable(_owners, _required)        
     DayLimit(_daylimit) { }
 
@@ -55,7 +55,7 @@ contract MultisigWallet is Multisig, Shareable, DayLimit {
    * @param _value The value to send
    * @param _data The data part of the transaction
    */
-  function execute(address _to, uint _value, bytes _data) external onlyOwner returns (bytes32 _r) {
+  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);
@@ -93,9 +93,9 @@ contract MultisigWallet is Multisig, Shareable, DayLimit {
 
   /** 
    * @dev Updates the daily limit value. 
-   * @param _newLimit 
+   * @param _newLimit  uint256 to represent the new limit.
    */
-  function setDailyLimit(uint _newLimit) onlymanyowners(keccak256(msg.data)) external {
+  function setDailyLimit(uint256 _newLimit) onlymanyowners(keccak256(msg.data)) external {
     _setDailyLimit(_newLimit);
   }
 
@@ -112,8 +112,8 @@ contract MultisigWallet is Multisig, Shareable, DayLimit {
    * @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/ReentrancyGuard.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.4.8;
+pragma solidity ^0.4.11;
 
 /**
  * @title Helps contracts guard agains rentrancy attacks.

contracts/SafeMath.sol

@@ -1,53 +0,0 @@
-pragma solidity ^0.4.8;
-
-
-/**
- * Math operations with safety checks
- */
-library SafeMath {
-  function mul(uint a, uint b) internal returns (uint) {
-    uint c = a * b;
-    assert(a == 0 || c / a == b);
-    return c;
-  }
-
-  function div(uint a, uint b) internal returns (uint) {
-    // assert(b > 0); // Solidity automatically throws when dividing by 0
-    uint c = a / b;
-    // assert(a == b * c + a % b); // There is no case in which this doesn't hold
-    return c;
-  }
-
-  function sub(uint a, uint b) internal returns (uint) {
-    assert(b <= a);
-    return a - b;
-  }
-
-  function add(uint a, uint b) internal returns (uint) {
-    uint c = a + b;
-    assert(c >= a);
-    return c;
-  }
-
-  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;
-  }
-
-  function assert(bool assertion) internal {
-    if (!assertion) {
-      throw;
-    }
-  }
-}

contracts/crowdsale/CappedCrowdsale.sol

@@ -0,0 +1,33 @@
+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) {
+    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 +1,108 @@
+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;
+    uint256 updatedWeiRaised = weiRaised.add(weiAmount);
+
+    // calculate token amount to be created
+    uint256 tokens = weiAmount.mul(rate);
+
+    // update state
+    weiRaised = updatedWeiRaised;
+
+    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 +1,59 @@
+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) {
+    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/lifecycle/Destructible.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.4.8;
+pragma solidity ^0.4.11;
 
 
 import "../ownership/Ownable.sol";
@@ -10,6 +10,8 @@ import "../ownership/Ownable.sol";
  */
 contract Destructible is Ownable {
 
+  function Destructible() payable { } 
+
   /**
    * @dev Transfers the current balance to the owner and terminates the contract. 
    */

contracts/lifecycle/Migrations.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.4.8;
+pragma solidity ^0.4.11;
 
 
 import '../ownership/Ownable.sol';
@@ -8,9 +8,9 @@ import '../ownership/Ownable.sol';
  * @dev This is a truffle contract, needed for truffle integration, not meant for use by Zeppelin users.
  */
 contract Migrations is Ownable {
-  uint public lastCompletedMigration;
+  uint256 public lastCompletedMigration;
 
-  function setCompleted(uint completed) onlyOwner {
+  function setCompleted(uint256 completed) onlyOwner {
     lastCompletedMigration = completed;
   }
 

contracts/lifecycle/Pausable.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.4.8;
+pragma solidity ^0.4.11;
 
 
 import "../ownership/Ownable.sol";

contracts/lifecycle/TokenDestructible.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.4.8;
+pragma solidity ^0.4.11;
 
 
 import "../ownership/Ownable.sol";
@@ -12,6 +12,8 @@ import "../token/ERC20Basic.sol";
  */
 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
@@ -22,7 +24,7 @@ contract TokenDestructible is Ownable {
   function destroy(address[] tokens) onlyOwner {
 
     // Transfer tokens to owner
-    for(uint i = 0; i < tokens.length; i++) {
+    for(uint256 i = 0; i < tokens.length; i++) {
       ERC20Basic token = ERC20Basic(tokens[i]);
       uint256 balance = token.balanceOf(this);
       token.transfer(owner, balance);

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 returns (uint256) {
+    uint256 c = a * b;
+    assert(a == 0 || c / a == b);
+    return c;
+  }
+
+  function div(uint256 a, uint256 b) internal 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 returns (uint256) {
+    assert(b <= a);
+    return a - b;
+  }
+
+  function add(uint256 a, uint256 b) internal returns (uint256) {
+    uint256 c = a + b;
+    assert(c >= a);
+    return c;
+  }
+}

contracts/ownership/Claimable.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.4.8;
+pragma solidity ^0.4.11;
 
 
 import './Ownable.sol';

contracts/ownership/Contactable.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.4.8;
+pragma solidity ^0.4.11;
 
 import './Ownable.sol';
 

contracts/ownership/DelayedClaimable.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.4.8;
+pragma solidity ^0.4.11;
 
 
 import './Claimable.sol';
@@ -11,8 +11,8 @@ import './Claimable.sol';
  */
 contract DelayedClaimable is Claimable {
 
-  uint public end;
-  uint public start;
+  uint256 public end;
+  uint256 public start;
 
   /**
    * @dev Used to specify the time period during which a pending 
@@ -20,7 +20,7 @@ contract DelayedClaimable is Claimable {
    * @param _start The earliest time ownership can be claimed.
    * @param _end The latest time ownership can be claimed. 
    */
-  function setLimits(uint _start, uint _end) onlyOwner {
+  function setLimits(uint256 _start, uint256 _end) onlyOwner {
     if (_start > _end)
         throw;
     end = _end;

contracts/ownership/HasNoContracts.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.4.8;
+pragma solidity ^0.4.11;
 
 import "./Ownable.sol";
 

contracts/ownership/HasNoEther.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.4.8;
+pragma solidity ^0.4.11;
 
 import "./Ownable.sol";
 

contracts/ownership/HasNoTokens.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.4.8;
+pragma solidity ^0.4.11;
 
 import "./Ownable.sol";
 import "../token/ERC20Basic.sol";
@@ -15,10 +15,10 @@ contract HasNoTokens is Ownable {
  /** 
   * @dev Reject all ERC23 compatible tokens
   * @param from_ address The address that is transferring the tokens
-  * @param value_ Uint the amount of the specified token
+  * @param value_ uint256 the amount of the specified token
   * @param data_ Bytes The data passed from the caller.
   */
-  function tokenFallback(address from_, uint value_, bytes data_) external {
+  function tokenFallback(address from_, uint256 value_, bytes data_) external {
     throw;
   }
 

contracts/ownership/Multisig.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.4.8;
+pragma solidity ^0.4.11;
 
 
 /**
@@ -10,19 +10,19 @@ contract Multisig {
 
   // 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

@@ -1,4 +1,4 @@
-pragma solidity ^0.4.8;
+pragma solidity ^0.4.11;
 
 import "./HasNoEther.sol";
 import "./HasNoTokens.sol";

contracts/ownership/Ownable.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.4.8;
+pragma solidity ^0.4.11;
 
 
 /**

contracts/ownership/Shareable.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.4.8;
+pragma solidity ^0.4.11;
 
 
 /**
@@ -11,18 +11,18 @@ contract Shareable {
 
   // struct for the status of a pending operation.
   struct PendingState {
-    uint yetNeeded;
-    uint ownersDone;
-    uint index;
+    uint256 yetNeeded;
+    uint256 ownersDone;
+    uint256 index;
   }
 
   // the number of owners that must confirm the same operation before it is run.
-  uint public required;
+  uint256 public required;
 
   // list of owners
   address[256] owners;
   // index on the list of owners to allow reverse lookup
-  mapping(address => uint) ownerIndex;
+  mapping(address => uint256) ownerIndex;
   // the ongoing operations.
   mapping(bytes32 => PendingState) pendings;
   bytes32[] pendingsIndex;
@@ -59,10 +59,10 @@ contract Shareable {
    * @param _owners A list of owners.
    * @param _required The amount required for a transaction to be approved.
    */
-  function Shareable(address[] _owners, uint _required) {
+  function Shareable(address[] _owners, uint256 _required) {
     owners[1] = msg.sender;
     ownerIndex[msg.sender] = 1;
-    for (uint i = 0; i < _owners.length; ++i) {
+    for (uint256 i = 0; i < _owners.length; ++i) {
       owners[2 + i] = _owners[i];
       ownerIndex[_owners[i]] = 2 + i;
     }
@@ -77,12 +77,12 @@ contract Shareable {
    * @param _operation A string identifying the operation.
    */
   function revoke(bytes32 _operation) external {
-    uint index = ownerIndex[msg.sender];
+    uint256 index = ownerIndex[msg.sender];
     // make sure they're an owner
     if (index == 0) {
       return;
     }
-    uint ownerIndexBit = 2**index;
+    uint256 ownerIndexBit = 2**index;
     var pending = pendings[_operation];
     if (pending.ownersDone & ownerIndexBit > 0) {
       pending.yetNeeded++;
@@ -93,10 +93,10 @@ contract Shareable {
 
   /**
    * @dev Gets an owner by 0-indexed position (using numOwners as the count)
-   * @param ownerIndex Uint The index of the owner
+   * @param ownerIndex uint256 The index of the owner
    * @return The address of the owner
    */
-  function getOwner(uint ownerIndex) external constant returns (address) {
+  function getOwner(uint256 ownerIndex) external constant returns (address) {
     return address(owners[ownerIndex + 1]);
   }
 
@@ -117,7 +117,7 @@ contract Shareable {
    */
   function hasConfirmed(bytes32 _operation, address _owner) constant returns (bool) {
     var pending = pendings[_operation];
-    uint index = ownerIndex[_owner];
+    uint256 index = ownerIndex[_owner];
 
     // make sure they're an owner
     if (index == 0) {
@@ -125,7 +125,7 @@ contract Shareable {
     }
 
     // determine the bit to set for this owner.
-    uint ownerIndexBit = 2**index;
+    uint256 ownerIndexBit = 2**index;
     return !(pending.ownersDone & ownerIndexBit == 0);
   }
 
@@ -136,7 +136,7 @@ contract Shareable {
    */
   function confirmAndCheck(bytes32 _operation) internal returns (bool) {
     // determine what index the present sender is:
-    uint index = ownerIndex[msg.sender];
+    uint256 index = ownerIndex[msg.sender];
     // make sure they're an owner
     if (index == 0) {
       throw;
@@ -153,7 +153,7 @@ contract Shareable {
       pendingsIndex[pending.index] = _operation;
     }
     // determine the bit to set for this owner.
-    uint ownerIndexBit = 2**index;
+    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);
@@ -177,8 +177,8 @@ contract Shareable {
    * @dev Clear the pending list.
    */
   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) {
       if (pendingsIndex[i] != 0) {
         delete pendings[pendingsIndex[i]];
       }

contracts/payment/PullPayment.sol

@@ -1,7 +1,7 @@
-pragma solidity ^0.4.8;
+pragma solidity ^0.4.11;
 
 
-import '../SafeMath.sol';
+import '../math/SafeMath.sol';
 
 
 /**
@@ -10,17 +10,17 @@ import '../SafeMath.sol';
  * contract and use asyncSend instead of send.
  */
 contract PullPayment {
-  using SafeMath for uint;
+  using SafeMath for uint256;
 
-  mapping(address => uint) public payments;
-  uint public totalPayments;
+  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, uint amount) internal {
+  function asyncSend(address dest, uint256 amount) internal {
     payments[dest] = payments[dest].add(amount);
     totalPayments = totalPayments.add(amount);
   }
@@ -30,7 +30,7 @@ contract PullPayment {
   */
   function withdrawPayments() {
     address payee = msg.sender;
-    uint payment = payments[payee];
+    uint256 payment = payments[payee];
 
     if (payment == 0) {
       throw;

contracts/token/BasicToken.sol

@@ -1,8 +1,8 @@
-pragma solidity ^0.4.8;
+pragma solidity ^0.4.11;
 
 
 import './ERC20Basic.sol';
-import '../SafeMath.sol';
+import '../math/SafeMath.sol';
 
 
 /**
@@ -10,26 +10,16 @@ import '../SafeMath.sol';
  * @dev Basic version of StandardToken, with no allowances. 
  */
 contract BasicToken is ERC20Basic {
-  using SafeMath for uint;
+  using SafeMath for uint256;
 
-  mapping(address => uint) balances;
-
-  /**
-   * @dev Fix for the ERC20 short address attack.
-   */
-  modifier onlyPayloadSize(uint size) {
-     if(msg.data.length < size + 4) {
-       throw;
-     }
-     _;
-  }
+  mapping(address => uint256) balances;
 
   /**
   * @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, uint _value) onlyPayloadSize(2 * 32) {
+  function transfer(address _to, uint256 _value) {
     balances[msg.sender] = balances[msg.sender].sub(_value);
     balances[_to] = balances[_to].add(_value);
     Transfer(msg.sender, _to, _value);
@@ -38,9 +28,9 @@ contract BasicToken is ERC20Basic {
   /**
   * @dev Gets the balance of the specified address.
   * @param _owner The address to query the the balance of. 
-  * @return An uint representing the amount owned by the passed address.
+  * @return An uint256 representing the amount owned by the passed address.
   */
-  function balanceOf(address _owner) constant returns (uint balance) {
+  function balanceOf(address _owner) constant returns (uint256 balance) {
     return balances[_owner];
   }
 

contracts/token/CrowdsaleToken.sol

@@ -1,60 +0,0 @@
-pragma solidity ^0.4.8;
-
-
-import "./StandardToken.sol";
-
-
-/**
- * @title CrowdsaleToken
- *
- * @dev Simple ERC20 Token example, with crowdsale token creation
- * @dev IMPORTANT NOTE: do not use or deploy this contract as-is. It needs some changes to be 
- * production ready.
- */
-contract CrowdsaleToken is StandardToken {
-
-  string public constant name = "CrowdsaleToken";
-  string public constant symbol = "CRW";
-  uint public constant decimals = 18;
-  // replace with your fund collection multisig address
-  address public constant multisig = 0x0;
-
-
-  // 1 ether = 500 example tokens
-  uint public constant PRICE = 500;
-
-  /**
-   * @dev Fallback function which receives ether and sends the appropriate number of tokens to the 
-   * msg.sender.
-   */
-  function () payable {
-    createTokens(msg.sender);
-  }
-
-  /**
-   * @dev Creates tokens and send to the specified address.
-   * @param recipient The address which will recieve the new tokens.
-   */
-  function createTokens(address recipient) payable {
-    if (msg.value == 0) {
-      throw;
-    }
-
-    uint tokens = msg.value.mul(getPrice());
-    totalSupply = totalSupply.add(tokens);
-
-    balances[recipient] = balances[recipient].add(tokens);
-
-    if (!multisig.send(msg.value)) {
-      throw;
-    }
-  }
-
-  /**
-   * @dev replace this with any other price function
-   * @return The price per unit of token. 
-   */
-  function getPrice() constant returns (uint result) {
-    return PRICE;
-  }
-}

contracts/token/ERC20.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.4.8;
+pragma solidity ^0.4.11;
 
 
 import './ERC20Basic.sol';
@@ -9,8 +9,8 @@ import './ERC20Basic.sol';
  * @dev see https://github.com/ethereum/EIPs/issues/20
  */
 contract ERC20 is ERC20Basic {
-  function allowance(address owner, address spender) constant returns (uint);
-  function transferFrom(address from, address to, uint value);
-  function approve(address spender, uint value);
-  event Approval(address indexed owner, address indexed spender, uint value);
+  function allowance(address owner, address spender) constant returns (uint256);
+  function transferFrom(address from, address to, uint256 value);
+  function approve(address spender, uint256 value);
+  event Approval(address indexed owner, address indexed spender, uint256 value);
 }

contracts/token/ERC20Basic.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.4.8;
+pragma solidity ^0.4.11;
 
 
 /**
@@ -7,8 +7,8 @@ pragma solidity ^0.4.8;
  * @dev see https://github.com/ethereum/EIPs/issues/20
  */
 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);
+  event Transfer(address indexed from, address indexed to, uint256 value);
 }

contracts/token/LimitedTransferToken.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.4.8;
+pragma solidity ^0.4.11;
 
 import "./ERC20.sol";
 
@@ -22,7 +22,7 @@ contract LimitedTransferToken is ERC20 {
   /**
    * @dev Checks whether it can transfer or otherwise throws.
    */
-  modifier canTransfer(address _sender, uint _value) {
+  modifier canTransfer(address _sender, uint256 _value) {
    if (_value > transferableTokens(_sender, uint64(now))) throw;
    _;
   }
@@ -32,8 +32,8 @@ contract LimitedTransferToken is ERC20 {
    * @param _to The address that will recieve the tokens.
    * @param _value The amount of tokens to be transferred.
    */
-  function transfer(address _to, uint _value) canTransfer(msg.sender, _value) {
-   return super.transfer(_to, _value);
+  function transfer(address _to, uint256 _value) canTransfer(msg.sender, _value) {
+    super.transfer(_to, _value);
   }
 
   /**
@@ -42,8 +42,8 @@ contract LimitedTransferToken is ERC20 {
   * @param _to The address that will recieve the tokens.
   * @param _value The amount of tokens to be transferred.
   */
-  function transferFrom(address _from, address _to, uint _value) canTransfer(_from, _value) {
-   return super.transferFrom(_from, _to, _value);
+  function transferFrom(address _from, address _to, uint256 _value) canTransfer(_from, _value) {
+    super.transferFrom(_from, _to, _value);
   }
 
   /**

contracts/token/MintableToken.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.4.8;
+pragma solidity ^0.4.11;
 
 
 import './StandardToken.sol';
@@ -14,11 +14,10 @@ import '../ownership/Ownable.sol';
  */
 
 contract MintableToken is StandardToken, Ownable {
-  event Mint(address indexed to, uint value);
+  event Mint(address indexed to, uint256 amount);
   event MintFinished();
 
   bool public mintingFinished = false;
-  uint public totalSupply = 0;
 
 
   modifier canMint() {
@@ -32,7 +31,7 @@ contract MintableToken is StandardToken, Ownable {
    * @param _amount The amount of tokens to mint.
    * @return A boolean that indicates if the operation was successful.
    */
-  function mint(address _to, uint _amount) onlyOwner canMint returns (bool) {
+  function mint(address _to, uint256 _amount) onlyOwner canMint returns (bool) {
     totalSupply = totalSupply.add(_amount);
     balances[_to] = balances[_to].add(_amount);
     Mint(_to, _amount);

contracts/token/PausableToken.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.4.8;
+pragma solidity ^0.4.11;
 
 import './StandardToken.sol';
 import '../lifecycle/Pausable.sol';
@@ -7,19 +7,15 @@ import '../lifecycle/Pausable.sol';
  * Pausable token
  *
  * Simple ERC20 Token example, with pausable token creation
- * Issue:
- * https://github.com/OpenZeppelin/zeppelin-solidity/issues/194
- * Based on code by BCAPtoken:
- * https://github.com/BCAPtoken/BCAPToken/blob/5cb5e76338cc47343ba9268663a915337c8b268e/sol/BCAPToken.sol#L27
  **/
 
-contract PausableToken is Pausable, StandardToken {
+contract PausableToken is StandardToken, Pausable {
 
   function transfer(address _to, uint _value) whenNotPaused {
-    return super.transfer(_to, _value);
+    super.transfer(_to, _value);
   }
 
   function transferFrom(address _from, address _to, uint _value) whenNotPaused {
-    return super.transferFrom(_from, _to, _value);
+    super.transferFrom(_from, _to, _value);
   }
-}
+}

contracts/token/SimpleToken.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.4.8;
+pragma solidity ^0.4.11;
 
 
 import "./StandardToken.sol";
@@ -14,8 +14,8 @@ 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. 

contracts/token/StandardToken.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.4.8;
+pragma solidity ^0.4.11;
 
 
 import './BasicToken.sol';
@@ -8,22 +8,22 @@ import './ERC20.sol';
 /**
  * @title Standard ERC20 token
  *
- * @dev Implemantation of the basic standart token.
+ * @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 BasicToken, ERC20 {
+contract StandardToken is ERC20, BasicToken {
 
-  mapping (address => mapping (address => uint)) allowed;
+  mapping (address => mapping (address => uint256)) allowed;
 
 
   /**
    * @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 uint the amout of tokens to be transfered
+   * @param _value uint256 the amout of tokens to be transfered
    */
-  function transferFrom(address _from, address _to, uint _value) onlyPayloadSize(3 * 32) {
+  function transferFrom(address _from, address _to, uint256 _value) {
     var _allowance = allowed[_from][msg.sender];
 
     // Check is not needed because sub(_allowance, _value) will already throw if this condition is not met
@@ -36,11 +36,11 @@ contract StandardToken is BasicToken, ERC20 {
   }
 
   /**
-   * @dev Aprove the passed address to spend the specified amount of tokens on beahlf of msg.sender.
+   * @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, uint _value) {
+  function approve(address _spender, uint256 _value) {
 
     // To change the approve amount you first have to reduce the addresses`
     //  allowance to zero by calling `approve(_spender, 0)` if it is not
@@ -53,12 +53,12 @@ contract StandardToken is BasicToken, ERC20 {
   }
 
   /**
-   * @dev Function to check the amount of tokens than an owner allowed to a spender.
+   * @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 uint specifing the amount of tokens still avaible for the spender.
+   * @return A uint256 specifing the amount of tokens still avaible for the spender.
    */
-  function allowance(address _owner, address _spender) constant returns (uint remaining) {
+  function allowance(address _owner, address _spender) constant returns (uint256 remaining) {
     return allowed[_owner][_spender];
   }
 

contracts/token/TokenTimelock.sol

@@ -0,0 +1,41 @@
+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;
+  }
+
+  /**
+   * @dev beneficiary claims tokens held by time lock
+   */
+  function claim() {
+    require(msg.sender == beneficiary);
+    require(now >= releaseTime);
+
+    uint amount = token.balanceOf(this);
+    require(amount > 0);
+
+    token.transfer(beneficiary, amount);
+  }
+}

contracts/token/VestedToken.sol

@@ -1,5 +1,6 @@
-pragma solidity ^0.4.8;
+pragma solidity ^0.4.11;
 
+import "../math/Math.sol";
 import "./StandardToken.sol";
 import "./LimitedTransferToken.sol";
 
@@ -50,7 +51,7 @@ contract VestedToken is StandardToken, LimitedTransferToken {
 
     if (tokenGrantsCount(_to) > MAX_GRANTS_PER_ADDRESS) throw;   // To prevent a user being spammed and have his balance locked (out of gas attack when calculating vesting).
 
-    uint count = grants[_to].push(
+    uint256 count = grants[_to].push(
                 TokenGrant(
                   _revokable ? msg.sender : 0, // avoid storing an extra 20 bytes when it is non-revokable
                   _value,
@@ -72,7 +73,7 @@ contract VestedToken is StandardToken, LimitedTransferToken {
    * @param _holder The address which will have its tokens revoked.
    * @param _grantId The id of the token grant.
    */
-  function revokeTokenGrant(address _holder, uint _grantId) public {
+  function revokeTokenGrant(address _holder, uint256 _grantId) public {
     TokenGrant grant = grants[_holder][_grantId];
 
     if (!grant.revokable) { // Check if grant was revokable
@@ -103,7 +104,7 @@ contract VestedToken is StandardToken, LimitedTransferToken {
    * @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 uint representing a holder's total amount of transferable tokens.
+   * @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);
@@ -121,15 +122,15 @@ contract VestedToken is StandardToken, LimitedTransferToken {
 
     // Return the minimum of how many vested can transfer and other value
     // in case there are other limiting transferability factors (default is balanceOf)
-    return SafeMath.min256(vestedTransferable, super.transferableTokens(holder, time));
+    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 uint representing the total amount of grants.
+   * @return A uint256 representing the total amount of grants.
    */
-  function tokenGrantsCount(address _holder) constant returns (uint index) {
+  function tokenGrantsCount(address _holder) constant returns (uint256 index) {
     return grants[_holder].length;
   }
 
@@ -140,7 +141,7 @@ contract VestedToken is StandardToken, LimitedTransferToken {
    * @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 uint representing the amount of vested tokensof a specif grant.
+   * @return An uint256 representing the amount of vested tokensof a specif grant.
    *  transferableTokens
    *   |                         _/--------   vestedTokens rect
    *   |                       _/
@@ -191,7 +192,7 @@ contract VestedToken is StandardToken, LimitedTransferToken {
    * @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, uint _grantId) constant returns (address granter, uint256 value, uint256 vested, uint64 start, uint64 cliff, uint64 vesting, bool revokable, bool burnsOnRevoke) {
+  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;
@@ -209,7 +210,7 @@ contract VestedToken is StandardToken, LimitedTransferToken {
    * @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 uint representing the amount of vested tokens of a specific grant at a specific time.
+   * @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(
@@ -225,7 +226,7 @@ contract VestedToken is StandardToken, LimitedTransferToken {
    * @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 uint representing the amount of non vested tokens of a specifc grant on the 
+   * @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) {
@@ -235,13 +236,13 @@ contract VestedToken is StandardToken, LimitedTransferToken {
   /**
    * @dev Calculate the date when the holder can trasfer all its tokens
    * @param holder address The address of the holder
-   * @return An uint representing the date of the last transferable tokens.
+   * @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 = SafeMath.max64(grants[holder][i].vesting, date);
+      date = Math.max64(grants[holder][i].vesting, date);
     }
   }
 }

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.

ethpm.json

@@ -1,6 +1,6 @@
 {
   "package_name": "zeppelin",
-  "version": "1.0.6",
+  "version": "1.1.0",
   "description": "Secure Smart Contract library for Solidity",
   "authors": [
     "Manuel Araoz <manuelaraoz@gmail.com>"

package.json

@@ -1,13 +1,13 @@
 {
   "name": "zeppelin-solidity",
-  "version": "1.0.6",
+  "version": "1.1.0",
   "description": "Secure Smart Contract library for Solidity",
   "main": "truffle.js",
   "scripts": {
     "test": "scripts/test.sh",
     "console": "truffle console",
-    "install": "scripts/install.sh",
-    "coverage": "scripts/coverage.sh"
+    "coverage": "scripts/coverage.sh",
+    "coveralls": "scripts/coveralls.sh"
   },
   "repository": {
     "type": "git",
@@ -35,8 +35,14 @@
     "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": "^0.1.0",
-    "truffle": "https://github.com/ConsenSys/truffle.git#3.1.9"
+    "truffle": "3.2.2"
   }
 }

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

@@ -4,10 +4,22 @@ output=$(nc -z localhost 8545; echo $?)
 [ $output -eq "0" ] && trpc_running=true
 if [ ! $trpc_running ]; then
   echo "Starting our own testrpc node instance"
-  testrpc > /dev/null &
+  # we give each account 1M ether, needed for high-value tests
+  testrpc \
+    --account="0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501200,1000000000000000000000000"  \
+    --account="0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501201,1000000000000000000000000"  \
+    --account="0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501202,1000000000000000000000000"  \
+    --account="0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501203,1000000000000000000000000"  \
+    --account="0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501204,1000000000000000000000000"  \
+    --account="0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501205,1000000000000000000000000"  \
+    --account="0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501206,1000000000000000000000000"  \
+    --account="0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501207,1000000000000000000000000"  \
+    --account="0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501208,1000000000000000000000000"  \
+    --account="0x2bdd21761a483f71054e14f5b827213567971c676928d9a1808cbfa4b7501209,1000000000000000000000000"  \
+  > /dev/null &
   trpc_pid=$!
 fi
-./node_modules/truffle/cli.js test
+./node_modules/truffle/cli.js test "$@"
 if [ ! $trpc_running ]; then
   kill -9 $trpc_pid
 fi

test/CappedCrowdsale.js

@@ -0,0 +1,81 @@
+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)
+
+  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/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

@@ -1,9 +1,11 @@
 'use strict';
 const assertJump = require('./helpers/assertJump');
+const timer = require('./helpers/timer');
 
-var DayLimitMock = artifacts.require('helpers/DayLimitMock.sol');
+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;
@@ -84,4 +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

@@ -49,7 +49,7 @@ contract('DelayedClaimable', function(accounts) {
     } catch (error) {
       err = error;
     }
-    assert.isFalse(err.message.search('invalid JUMP') === -1);
+    assert.isFalse(err.message.search('invalid opcode') === -1);
     let owner = await delayedClaimable.owner();
     assert.isTrue(owner !== accounts[1]);
   });
@@ -62,7 +62,7 @@ contract('DelayedClaimable', function(accounts) {
     } catch (error) {
       err = error;
     }
-    assert.isFalse(err.message.search('invalid JUMP') === -1);
+    assert.isFalse(err.message.search('invalid opcode') === -1);
   });
 
 });

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/HasNoEther.js

@@ -35,7 +35,8 @@ contract('HasNoEther', function(accounts) {
     assert.equal(startBalance, 0);
 
     // Force ether into it
-    await ForceEther.new(hasNoEther.address, {value: amount});
+    let forceEther = await ForceEther.new({value: amount});
+    await forceEther.destroyAndSend(hasNoEther.address);
     const forcedBalance = await web3.eth.getBalance(hasNoEther.address);
     assert.equal(forcedBalance, amount);
 
@@ -53,7 +54,8 @@ contract('HasNoEther', function(accounts) {
     let hasNoEther = await HasNoEtherTest.new({from: accounts[0]});
 
     // Force ether into it
-    await ForceEther.new(hasNoEther.address, {value: amount});
+    let forceEther = await ForceEther.new({value: amount});
+    await forceEther.destroyAndSend(hasNoEther.address);
     const forcedBalance = await web3.eth.getBalance(hasNoEther.address);
     assert.equal(forcedBalance, amount);
 

test/MultisigWallet.js

@@ -52,7 +52,7 @@ contract('MultisigWallet', function(accounts) {
 
     //Balance of account2 should have increased
     let newAccountBalance = web3.eth.getBalance(accounts[2]);
-    assert.isTrue(newAccountBalance > accountBalance);
+    assert.isTrue(newAccountBalance.greaterThan(accountBalance));
   });
 
   it('should prevent execution of transaction if above daily limit', async function() {

test/RefundVault.js

@@ -0,0 +1,61 @@
+const BigNumber = web3.BigNumber
+
+require('chai')
+  .use(require('chai-as-promised'))
+  .use(require('chai-bignumber')(BigNumber))
+  .should()
+
+import ether from './helpers/ether'
+import EVMThrow from './helpers/EVMThrow'
+
+const RefundVault = artifacts.require('RefundVault')
+
+contract('RefundVault', function ([_, owner, wallet, investor]) {
+
+  const value = ether(42)
+
+  beforeEach(async function () {
+    this.vault = await RefundVault.new(wallet, {from: owner})
+  })
+
+  it('should accept contributions', async function () {
+    await this.vault.deposit(investor, {value, from: owner}).should.be.fulfilled
+  })
+
+  it('should not refund contribution during active state', async function () {
+    await this.vault.deposit(investor, {value, from: owner})
+    await this.vault.refund(investor).should.be.rejectedWith(EVMThrow)
+  })
+
+  it('only owner can enter refund mode', async function () {
+    await this.vault.enableRefunds({from: _}).should.be.rejectedWith(EVMThrow)
+    await this.vault.enableRefunds({from: owner}).should.be.fulfilled
+  })
+
+  it('should refund contribution after entering refund mode', async function () {
+    await this.vault.deposit(investor, {value, from: owner})
+    await this.vault.enableRefunds({from: owner})
+
+    const pre = web3.eth.getBalance(investor)
+    await this.vault.refund(investor)
+    const post = web3.eth.getBalance(investor)
+
+    post.minus(pre).should.be.bignumber.equal(value)
+  })
+
+  it('only owner can close', async function () {
+    await this.vault.close({from: _}).should.be.rejectedWith(EVMThrow)
+    await this.vault.close({from: owner}).should.be.fulfilled
+  })
+
+  it('should forward funds to wallet after closing', async function () {
+    await this.vault.deposit(investor, {value, from: owner})
+
+    const pre = web3.eth.getBalance(wallet)
+    await this.vault.close({from: owner})
+    const post = web3.eth.getBalance(wallet)
+
+    post.minus(pre).should.be.bignumber.equal(value)
+  })
+
+})

test/RefundableCrowdsale.js

@@ -0,0 +1,67 @@
+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 RefundableCrowdsale = artifacts.require('./helpers/RefundableCrowdsaleImpl.sol')
+
+contract('RefundableCrowdsale', function ([_, owner, wallet, investor]) {
+
+  const rate = new BigNumber(1000)
+  const goal = ether(800)
+  const lessThanGoal = ether(750)
+
+  beforeEach(async function () {
+    this.startBlock = web3.eth.blockNumber + 10
+    this.endBlock =   web3.eth.blockNumber + 20
+
+    this.crowdsale = await RefundableCrowdsale.new(this.startBlock, this.endBlock, rate, wallet, goal, {from: owner})
+  })
+
+  it('should deny refunds before end', async function () {
+    await this.crowdsale.claimRefund({from: investor}).should.be.rejectedWith(EVMThrow)
+    await advanceToBlock(this.endBlock - 1)
+    await this.crowdsale.claimRefund({from: investor}).should.be.rejectedWith(EVMThrow)
+  })
+
+  it('should deny refunds after end if goal was reached', async function () {
+    await advanceToBlock(this.startBlock - 1)
+    await this.crowdsale.sendTransaction({value: goal, from: investor})
+    await advanceToBlock(this.endBlock)
+    await this.crowdsale.claimRefund({from: investor}).should.be.rejectedWith(EVMThrow)
+  })
+
+  it('should allow refunds after end if goal was not reached', async function () {
+    await advanceToBlock(this.startBlock - 1)
+    await this.crowdsale.sendTransaction({value: lessThanGoal, from: investor})
+    await advanceToBlock(this.endBlock)
+
+    await this.crowdsale.finalize({from: owner})
+
+    const pre = web3.eth.getBalance(investor)
+    await this.crowdsale.claimRefund({from: investor, gasPrice: 0})
+			.should.be.fulfilled
+    const post = web3.eth.getBalance(investor)
+
+    post.minus(pre).should.be.bignumber.equal(lessThanGoal)
+  })
+
+  it('should forward funds to wallet after end if goal was reached', async function () {
+    await advanceToBlock(this.startBlock - 1)
+    await this.crowdsale.sendTransaction({value: goal, from: investor})
+    await advanceToBlock(this.endBlock)
+
+    const pre = web3.eth.getBalance(wallet)
+    await this.crowdsale.finalize({from: owner})
+    const post = web3.eth.getBalance(wallet)
+
+    post.minus(pre).should.be.bignumber.equal(goal)
+  })
+
+})

test/TokenTimelock.js

@@ -0,0 +1,58 @@
+const BigNumber = web3.BigNumber
+
+require('chai')
+  .use(require('chai-as-promised'))
+  .use(require('chai-bignumber')(BigNumber))
+  .should()
+
+import moment from 'moment'
+
+import latestTime from './helpers/latestTime'
+import increaseTime from './helpers/increaseTime'
+
+const MintableToken = artifacts.require('MintableToken')
+const TokenTimelock = artifacts.require('TokenTimelock')
+
+contract('TokenTimelock', function ([_, owner, beneficiary]) {
+
+  const amount = new BigNumber(100)
+
+  beforeEach(async function () {
+    this.token = await MintableToken.new({from: owner})
+    this.releaseTime = latestTime().add(1, 'year').unix()
+    this.timelock = await TokenTimelock.new(this.token.address, beneficiary, this.releaseTime)
+    await this.token.mint(this.timelock.address, amount, {from: owner})
+  })
+
+  it('cannot be claimed before time limit', async function () {
+    await this.timelock.claim({from: beneficiary}).should.be.rejected
+  })
+
+  it('cannot be claimed just before time limit', async function () {
+    await increaseTime(moment.duration(0.99, 'year'))
+    await this.timelock.claim({from: beneficiary}).should.be.rejected
+  })
+
+  it('can be claimed just after limit', async function () {
+    await increaseTime(moment.duration(1.01, 'year'))
+    await this.timelock.claim({from: beneficiary}).should.be.fulfilled
+    const balance = await this.token.balanceOf(beneficiary)
+    balance.should.be.bignumber.equal(amount)
+  })
+
+  it('can be claimed after time limit', async function () {
+    await increaseTime(moment.duration(2, 'year'))
+    await this.timelock.claim({from: beneficiary}).should.be.fulfilled
+    const balance = await this.token.balanceOf(beneficiary)
+    balance.should.be.bignumber.equal(amount)
+  })
+
+  it('cannot be claimed twice', async function () {
+    await increaseTime(moment.duration(2, 'year'))
+    await this.timelock.claim({from: beneficiary}).should.be.fulfilled
+    await this.timelock.claim({from: beneficiary}).should.be.rejected
+    const balance = await this.token.balanceOf(beneficiary)
+    balance.should.be.bignumber.equal(amount)
+  })
+
+})

test/helpers/BasicTokenMock.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.4.8;
+pragma solidity ^0.4.11;
 
 
 import '../../contracts/token/BasicToken.sol';

test/helpers/CappedCrowdsaleImpl.sol

@@ -0,0 +1,21 @@
+pragma solidity ^0.4.11;
+
+
+import '../../contracts/crowdsale/CappedCrowdsale.sol';
+
+
+contract CappedCrowdsaleImpl is CappedCrowdsale {
+
+  function CappedCrowdsaleImpl (
+    uint256 _startBlock,
+    uint256 _endBlock,
+    uint256 _rate,
+    address _wallet,
+    uint256 _cap
+  )
+    Crowdsale(_startBlock, _endBlock, _rate, _wallet)
+    CappedCrowdsale(_cap) 
+  {
+  }
+
+}

test/helpers/DayLimitMock.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.4.8;
+pragma solidity ^0.4.11;
 import "../../contracts/DayLimit.sol";
 
 contract DayLimitMock is DayLimit {

test/helpers/ERC23TokenMock.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.4.8;
+pragma solidity ^0.4.11;
 
 
 import '../../contracts/token/BasicToken.sol';

test/helpers/EVMThrow.js

@@ -0,0 +1 @@
+export default 'invalid opcode'

test/helpers/FinalizableCrowdsaleImpl.sol

@@ -0,0 +1,20 @@
+pragma solidity ^0.4.11;
+
+
+import '../../contracts/crowdsale/FinalizableCrowdsale.sol';
+
+
+contract FinalizableCrowdsaleImpl is FinalizableCrowdsale {
+
+  function FinalizableCrowdsaleImpl (
+    uint256 _startBlock,
+    uint256 _endBlock,
+    uint256 _rate,
+    address _wallet
+  )
+    Crowdsale(_startBlock, _endBlock, _rate, _wallet)
+    FinalizableCrowdsale() 
+  {
+  }
+
+}

test/helpers/ForceEther.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.4.8;
+pragma solidity ^0.4.11;
 
 // @title Force Ether into a contract.
 // @notice  even
@@ -6,8 +6,10 @@ pragma solidity ^0.4.8;
 // @notice To use, construct the contract with the target as argument.
 // @author Remco Bloemen <remco@neufund.org>
 contract ForceEther  {
-  function ForceEther(address target) payable {
-    // Selfdestruct transfers all Ether to the arget address
-    selfdestruct(target);
+
+  function ForceEther() payable { }
+
+  function destroyAndSend(address _recipient) {
+    selfdestruct(_recipient);
   }
 }

test/helpers/HasNoEtherTest.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.4.8;
+pragma solidity ^0.4.11;
 
 import "../../contracts/ownership/HasNoEther.sol";
 

test/helpers/InsecureTargetBounty.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.4.8;
+pragma solidity ^0.4.11;
 
 
 import {Bounty, Target} from "../../contracts/Bounty.sol";

test/helpers/LimitBalanceMock.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.4.8;
+pragma solidity ^0.4.11;
 
 
 import '../../contracts/LimitBalance.sol';

test/helpers/MultisigWalletMock.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.4.8;
+pragma solidity ^0.4.11;
 import "../../contracts/MultisigWallet.sol";
 
 contract MultisigWalletMock is MultisigWallet {

test/helpers/PausableMock.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.4.8;
+pragma solidity ^0.4.11;
 
 
 import '../../contracts/lifecycle/Pausable.sol';

test/helpers/PausableTokenMock.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.4.8;
+pragma solidity ^0.4.11;
 
 import '../../contracts/token/PausableToken.sol';
 

test/helpers/PullPaymentMock.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.4.8;
+pragma solidity ^0.4.11;
 
 
 import '../../contracts/payment/PullPayment.sol';

test/helpers/ReentrancyAttack.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.4.8;
+pragma solidity ^0.4.11;
 
 contract ReentrancyAttack {
 

test/helpers/ReentrancyMock.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.4.8;
+pragma solidity ^0.4.11;
 
 import '../../contracts/ReentrancyGuard.sol';
 import './ReentrancyAttack.sol';

test/helpers/RefundableCrowdsaleImpl.sol

@@ -0,0 +1,21 @@
+pragma solidity ^0.4.11;
+
+
+import '../../contracts/crowdsale/RefundableCrowdsale.sol';
+
+
+contract RefundableCrowdsaleImpl is RefundableCrowdsale {
+
+  function RefundableCrowdsaleImpl (
+    uint256 _startBlock,
+    uint256 _endBlock,
+    uint256 _rate,
+    address _wallet,
+    uint256 _goal
+  )
+    Crowdsale(_startBlock, _endBlock, _rate, _wallet)
+    RefundableCrowdsale(_goal) 
+  {
+  }
+
+}

test/helpers/SafeMathMock.sol

@@ -1,7 +1,7 @@
-pragma solidity ^0.4.8;
+pragma solidity ^0.4.11;
 
 
-import '../../contracts/SafeMath.sol';
+import '../../contracts/math/SafeMath.sol';
 
 
 contract SafeMathMock {

test/helpers/SecureTargetBounty.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.4.8;
+pragma solidity ^0.4.11;
 
 
 import {Bounty, Target} from "../../contracts/Bounty.sol";

test/helpers/ShareableMock.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.4.8;
+pragma solidity ^0.4.11;
 import "../../contracts/ownership/Shareable.sol";
 
 contract ShareableMock is Shareable {

test/helpers/StandardTokenMock.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.4.8;
+pragma solidity ^0.4.11;
 
 
 import '../../contracts/token/StandardToken.sol';

test/helpers/VestedTokenMock.sol

@@ -1,4 +1,4 @@
-pragma solidity ^0.4.8;
+pragma solidity ^0.4.11;
 
 import '../../contracts/token/VestedToken.sol';
 

test/helpers/advanceToBlock.js

@@ -0,0 +1,22 @@
+export function advanceBlock() {
+  return new Promise((resolve, reject) => {
+    web3.currentProvider.sendAsync({
+      jsonrpc: '2.0',
+      method: 'evm_mine',
+      id: Date.now(),
+    }, (err, res) => {
+      return err ? reject(err) : resolve(res)
+    })
+  })
+}
+
+// Advances the block number so that the last mined block is `number`.
+export default async function advanceToBlock(number) {
+  if (web3.eth.blockNumber > number) {
+    throw Error(`block number ${number} is in the past (current is ${web3.eth.blockNumber})`)
+  }
+
+  while (web3.eth.blockNumber < number) {
+    await advanceBlock()
+  }
+}

test/helpers/assertJump.js

@@ -1,3 +1,3 @@
 module.exports = function(error) {
-  assert.isAbove(error.message.search('invalid JUMP'), -1, 'Invalid JUMP error must be returned');
+  assert.isAbove(error.message.search('invalid opcode'), -1, 'Invalid opcode error must be returned');
 }

test/helpers/ether.js

@@ -0,0 +1,3 @@
+export default function ether(n) {
+  return new web3.BigNumber(web3.toWei(n, 'ether'))
+}

test/helpers/expectThrow.js

@@ -4,14 +4,14 @@ export default async promise => {
   } catch (error) {
     // TODO: Check jump destination to destinguish between a throw
     //       and an actual invalid jump.
-    const invalidJump = error.message.search('invalid JUMP') >= 0;
+    const invalidOpcode = error.message.search('invalid opcode') >= 0;
     // TODO: When we contract A calls contract B, and B throws, instead
     //       of an 'invalid jump', we get an 'out of gas' error. How do
     //       we distinguish this from an actual out of gas event? (The
     //       testrpc log actually show an 'invalid jump' event.)
     const outOfGas = error.message.search('out of gas') >= 0;
     assert(
-      invalidJump || outOfGas,
+      invalidOpcode || outOfGas,
       "Expected throw, got '" + error + "' instead",
     );
     return;

test/helpers/increaseTime.js

@@ -0,0 +1,23 @@
+// Increases testrpc time by the passed duration (a moment.js instance)
+export default function increaseTime(duration) {
+  const id = Date.now()
+
+  return new Promise((resolve, reject) => {
+    web3.currentProvider.sendAsync({
+      jsonrpc: '2.0',
+      method: 'evm_increaseTime',
+      params: [duration.asSeconds()],
+      id: id,
+    }, err1 => {
+      if (err1) return reject(err1)
+
+      web3.currentProvider.sendAsync({
+        jsonrpc: '2.0',
+        method: 'evm_mine',
+        id: id+1,
+      }, (err2, res) => {
+        return err2 ? reject(err2) : resolve(res)
+      })
+    })
+  })
+}

test/helpers/latestTime.js

@@ -0,0 +1,6 @@
+import moment from 'moment'
+
+// Returns a moment.js instance representing the time of the last mined block
+export default function latestTime() {
+  return moment.unix(web3.eth.getBlock('latest').timestamp)
+}