* Update ERC827.sol to not use function overloading
* updated tests for erc827 function name changes
* fixed broken test
* removed findMethod from erc827 tests that is no longer necessary
* fix: clean up solium linting errors
* fix: make various contracts natspec compliant
* fix: this.balance deprecated; convert to address(this).balance
* fix: contract.call deprecated and switch to gasleft()
* fix: ignore empty block rule project-wide
* fix: add ignore cases for the rest of the linting warnings
* Update to ganache-cli v6.1.0 and truffle v4.1.0
* Update to stable version of ganache-cli
* fix: update event emission warning
- Fix event emission warnings for solidity 4.21 after truffle has been
updated to use this version
* fix pr review comments
* update to truffle v4.1.5
* update package-lock
* add additional emit keywords
* update solidity-coverage to 0.4.15
* update to solium 1.1.6
* fix MerkleProof coverage analysis by testing through wrapper
* change version pragma to ^0.4.21
* fix solium linting errors
add missing public identifier in approveData in SmartToken contract
remove constact from showMessage function in message helper contract
move Message helper contract to mocks folder
move SmartTokenMock contract to mocks folder