* Removed all instances of var.

* Sorted eslintrc rules.

* Made eslint rule severity explicit.

* Now prefering const over let.

* fix: bounty tests, superceeds #799

* fix: updates from PR notes

* Test: Remove chai-as-promised calls

* Test/Helpers: expectThrow accepts optional message

* NPM: Remove chai-as-promised

* Contracts/DestructibleMock: Fix lint

* Destructible no longer has a payable constructor.

* Fixed linter errors.

* Improved documentation for _preValidatePurchase in Crowdsale

* Added newline at EOF

* removed and tested unecessary gas cost

* linted

* Revert package-lock.json update.

This reverts commit 054598ce7f125b0e1aa4c463f047ac77771cf635.

* Added clarifying comments.

* decrease approval condition fix (greater than and equal to)

* sol lint fixed

* Improved standard token decreaseApprovalTests.

* Update StandardToken.sol

* Slight improvement in gas efficiency

Users tend to attempt to over-spend more than they attempt to burn non-burnable tokens. If the contract checks for overspending before assuring tokens are not being burnt a slight amount of gas might be saved in the long term.

* Changed before for beforeAll, refactored Bouncer tests.

* Fixed linter errors.

* fix: updates for SignatureBouncer tests and voucher construction

* feat: add AutoIncrementing contract

* feat: allow multiple counters per instance

* fix: some linting errors

* feat: use recommended implementaiton

* fix: remove .only in tests

* fix: PR notes

* fix: add note about incrementing counter

* Test helpers no longer rely on Babel.

* Behaviours are no longer imported.

* Removed Babel dependency.

* Fixed linter errors.

* Assume that token is mintable.

* ECRecover test should revert because of wrong calldata size

* fix: use expectThrow

* fix: ignore failing test until solc^0.5.0

* Create CODE_OF_CONDUCT.md

* fix: update to raw text from website rather than github's provided one

* Added basic Escrow

* PullPayment now uses an Escrow, removing all trust from the contract

* Abstracted the Escrow tests to a behaviour

* Added ConditionalEscrow

* Added RefundableEscrow.

* RefundableCrowdsale now uses a RefundEscrow, removed RefundVault.

* Renaming after code review.

* Added log test helper.

* Now allowing empty deposits and withdrawals.

* Style fixes.

* Minor review comments.

* Add Deposited and Withdrawn events, removed Refunded

* The base Escrow is now Ownable, users of it (owners) must provide methods to access it.

* update package-lock generated by npm

* run npm audit fix

* Align ERC721 Receiver with current ERC721 standard.
Adds a second address field to onERC721Received
onERC721Received(address,address,uint256,bytes)
Updates the function signature to 0x150b7a02 from 0xf0b9e5ba

* Add _operator to onERC721Received

* Fix error caused by formatOnSave

* Fixed comments on ERC721Receiver
Removed "Must use 50,000 gas or less"
Corrected the function signature

Implementing this token is unsafe as per comments here:
https://github.com/ethereum/EIPs/issues/827#issuecomment-397857455

* feat: initial implementation of ERC1046

* introduced safeTransfer to Crowdsale

* Removed .node-xmlhttprequest-sync-7601

* fix: swithc WhitelistedCrowdsale to use Whitelist.sol

* feat: refactor whitelist.sol, rbac.sol and whitelistedcrowdsale.sol

* feat: add event arg assets and update whitelist

* fix: update modifier comment and also test isWhitelisted

* fix: remove onlyWhitelisted backwards compat attempt, fix explicit inheritance

* fix: remove underscore prefix from event args

* fix: user access/Whitelist

* Remove redundant @dev tags

* Remove redundant @notice tags