* Updated code style to no more than120 characters per line.
* Unify code comments style with Doxygen-style tags.
* Fix the conflicts.
* Add a return value in the contract ERC20Burnable.
* A Add a wrapper function to change type of address to address payable.
* U Modify Address utils.
* A Add test case for Address.
* U Modify code style in ERC20Burnable.
* Add changelog entry.
* Improved dev docs.
* replacing all instances of from: anyone with from: other
* replacing all instances of from: anyone with from: other
* replacing all instances of from: anyone with from: other
* changing anyone to other
* changing anyone to other
* Replaced assertJump, assertRevert and expectThrow with shouldFail.
* Fixed linter errors.
* Fixed typo.
* Made the helpers async.
(cherry picked from commit b0da0fded0)
* Add Arrays library with unit tests (#1209)
* prepared due to snapshot token requirements
* add library with method to find upper bound
* add unit test for basic and edge cases
* Imporove documentation for Arrays library
Simplify Arrays.test.js to use short arrays as test date
* Added comment for uint256 mid variable.
* Explaned why uint256 mid variable calculated as Math.average is safe to use as index of array.
(cherry picked from commit f7e53d90fa)
* Add Arrays library with unit tests (#1209)
* prepared due to snapshot token requirements
* add library with method to find upper bound
* add unit test for basic and edge cases
* Imporove documentation for Arrays library
Simplify Arrays.test.js to use short arrays as test date
* Added comment for uint256 mid variable.
* Explaned why uint256 mid variable calculated as Math.average is safe to use as index of array.