* Replaced assertJump, assertRevert and expectThrow with shouldFail.
* Fixed linter errors.
* Fixed typo.
* Made the helpers async.
(cherry picked from commit b0da0fded0)
* Add BigNumber support to expectEvent/inLogs (#1026)
* switched direct logs array check to expectEvent method in AllowanceCrowdsale.test.js
* Refactor expectEvent.inLogs function to use simple value number check
* Introduced should.be.bignumber method to compare BigNumber values
* Use expectEvent to test logs (#1232)
* Removed trailing space
(cherry picked from commit 536262f2ec)