* 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.
* separate part of ERC721Mintable into ERC721MetadataMintable
* remove mint and burn from 721 tests
* Fixed linter error.
* fix ERC721 mint tests
* Minor fixes.
(cherry picked from commit 744f567f40)
* separate part of ERC721Mintable into ERC721MetadataMintable
* remove mint and burn from 721 tests
* Fixed linter error.
* fix ERC721 mint tests
* Minor fixes.
* Fixed a broken payment test
* In PR template, npm run lint:fix, not lint:all:fix
* In SplitPayment test, replaced an await-in-loop with Promise.all
(cherry picked from commit b79196f911)
* 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
* 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
* Destructure transaction object to extract logs field
* release candidate v2.0.0-rc.1
* fix linter error
(cherry picked from commit c12a1c6898)
* Roles now emit events in construction and when renouncing.
(cherry picked from commit 21198bf1c1)
* rename Index.currentId to current
* use += operator for clarity
* rename Counter.Index to Counter.Counter
* move Counter to drafts
(cherry picked from commit 3e55408cb5)
* Extract standard token behaviuor to reuse it in other tests
* Add opt in ERC20 migration contract
* Make migration contract not to depend from standard token
* Changes based on feedback
* Improve MigratableERC20 inline documentation
* move behaviors to behaviors directory
* refactor MigratableERC20 into ERC20Migrator
* fix errors
* change expectEvent to support multiple events with same name
* fix tests
* update documentation
* rename MigratableERC20 files to ERC20Migrator
* move to drafts
* test beginMigration
* rename to ERC20Migrator
* missing semicolon (╯°□°)╯︵ ┻━┻
* add non-zero check
* improve documentation based on review comments
* improve test descriptions
* improve docs
* add getters
* fix contract
* improve tests
* The role library now requires non-zero addresses.
* Fixed SignatureBouncer checks with null address.
* change ternary operator for or operator
* adapt to new variable name convention
* Update Roles.sol
* rename {increase,decrease}Approval to {increase,decrease}Allowance
* add non-zero spender check to approve and {increase,decrease}Allowance
* Updated tests to reflect the new behavior.
* fix wrong test description
* fix old function names
* Fixed linter error.
* Fixed typo.