Replaced Solium in favor of Solhint (#1575)

* Adding solhint, working on style fixes.

* Upgraded to solhint 1.5.0.

* Removed all references to Solium

* Updated mocks to make the pass the new linter rules.

* Reformatted the .solhint.json file a bit.

* Removed Solium configuration files.

* Remove Solium dependency.

* Add comment explaing disabled time rule in TokenVesting.

* Revert to the old (ugly?) style.

* Revert SignatureBouncerMock style.

* Fix ERC165InterfacesSupported interface.

contracts/token/ERC20/ERC20.sol

@@ -8,7 +8,8 @@ import "../../math/SafeMath.sol";
  *
  * @dev Implementation of the basic standard token.
  * https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20.md
- * Originally based on code by FirstBlood: https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
+ * Originally based on code by FirstBlood:
+ * https://github.com/Firstbloodio/token/blob/master/smart_contract/FirstBloodToken.sol
  *
  * This implementation emits additional Approval events, allowing applications to reconstruct the allowance status for
  * all accounts just by listening to said events. Note that this isn't required by the specification, and other

contracts/token/ERC20/ERC20Pausable.sol

@@ -12,7 +12,7 @@ contract ERC20Pausable is ERC20, Pausable {
         return super.transfer(to, value);
     }
 
-    function transferFrom(address from,address to, uint256 value) public whenNotPaused returns (bool) {
+    function transferFrom(address from, address to, uint256 value) public whenNotPaused returns (bool) {
         return super.transferFrom(from, to, value);
     }
 

contracts/token/ERC20/IERC20.sol

@@ -5,18 +5,18 @@ pragma solidity ^0.5.0;
  * @dev see https://github.com/ethereum/EIPs/issues/20
  */
 interface IERC20 {
-    function totalSupply() external view returns (uint256);
-
-    function balanceOf(address who) external view returns (uint256);
-
-    function allowance(address owner, address spender) external view returns (uint256);
-
     function transfer(address to, uint256 value) external returns (bool);
 
     function approve(address spender, uint256 value) external returns (bool);
 
     function transferFrom(address from, address to, uint256 value) external returns (bool);
 
+    function totalSupply() external view returns (uint256);
+
+    function balanceOf(address who) external view returns (uint256);
+
+    function allowance(address owner, address spender) external view returns (uint256);
+
     event Transfer(address indexed from, address indexed to, uint256 value);
 
     event Approval(address indexed owner, address indexed spender, uint256 value);

contracts/token/ERC20/TokenTimelock.sol

@@ -20,7 +20,7 @@ contract TokenTimelock {
     uint256 private _releaseTime;
 
     constructor (IERC20 token, address beneficiary, uint256 releaseTime) public {
-        // solium-disable-next-line security/no-block-members
+        // solhint-disable-next-line not-rely-on-time
         require(releaseTime > block.timestamp);
         _token = token;
         _beneficiary = beneficiary;
@@ -52,7 +52,7 @@ contract TokenTimelock {
      * @notice Transfers tokens held by timelock to beneficiary.
      */
     function release() public {
-        // solium-disable-next-line security/no-block-members
+        // solhint-disable-next-line not-rely-on-time
         require(block.timestamp >= _releaseTime);
 
         uint256 amount = _token.balanceOf(address(this));