* turn off blank-lines rule

* remove triple newlines

(cherry picked from commit 9b371046)

* Add Mock suffix to variable names #1172

* Add Impl suffix to variable names

(cherry picked from commit 4b21fcf5)

(cherry picked from commit d062352d)

(cherry picked from commit 7825caa1)

correct typo in doc

(cherry picked from commit b644c72e)

(cherry picked from commit 0b8296e5)

(cherry picked from commit 651f6d8b)

* signing prefix added

* Minor improvement

* Tests changed

* Successfully tested

* Minor improvements

* Minor improvements

* Revert "Dangling commas are now required. (#1359)"

This reverts commit a6889776.

* updates

* fixes #1206

(cherry picked from commit 58a42443)

* signing prefix added

* Minor improvement

* Tests changed

* Successfully tested

* Minor improvements

* Minor improvements

* Revert "Dangling commas are now required. (#1359)"

This reverts commit a6889776.

* updates

* fixes #1392

* event tests added

* constructor event added

(cherry picked from commit af42c39e)

(cherry picked from commit 3acc2b42)

*     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 f7e53d90)

* signing prefix added

* Minor improvement

* Tests changed

* Successfully tested

* Minor improvements

* Minor improvements

* Revert "Dangling commas are now required. (#1359)"

This reverts commit a6889776.

* updates

* fixes #1384

* introduced claimable and cancelBounty

* cancelBounty tests

* Update BreakInvariantBounty.test.js

(cherry picked from commit 41f84f8b)

(cherry picked from commit b17de011)

(cherry picked from commit 308e5e9c)

(cherry picked from commit 43ebb4fc)

* signing prefix added

* Minor improvement

* Tests changed

* Successfully tested

* Minor improvements

* Minor improvements

* Revert "Dangling commas are now required. (#1359)"

This reverts commit a6889776.

* updates

* fixes #1371

* Removed extra whitespace

(cherry picked from commit f3888bb0)

* signing prefix added

* Minor improvement

* Tests changed

* Successfully tested

* Minor improvements

* Minor improvements

* Revert "Dangling commas are now required. (#1359)"

This reverts commit a6889776.

* updates

* fixes #1356

* Removed extra semicolon.

(cherry picked from commit c87433e0)

* 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 744f567f)

* 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 b79196f9)

* fix: refactor sign.js and related tests

* fix: remove unused dep

* fix: update package.json correctly

* Add missing tests to ECRecovery

* fix lint

* Reorganize the tests

* Reuse signature

* fix static errors

* Apply suggestions by @frangion and @nventuro

* Remove only

* More suggestions

* Remove unnecessary max-len

* remove only

(cherry picked from commit 75c0a59b)

* add test for msg.data too short

* fix test to hit that branch

* Update SignatureBouncer.test.js

(cherry picked from commit 1a4e5346)

* Improved bounty tests.

* Fixed linter errors.

* Addressed review comments.

(cherry picked from commit ae109f69)

* Removed mintingFinished from ERC20Mintable.

* Removed MintingFinished from ERC721Mintable.

* Removed MintingFinished event.

(cherry picked from commit 5fdeaa81)

(cherry picked from commit db2e1d2c)

* Add the missing test for ERC721Holder

* fix lint

* Move the holder test to a separate file

(cherry picked from commit 396680b8)

* release candidate v2.0.0-rc.1

* fix linter error

(cherry picked from commit c12a1c68)

* Roles now emit events in construction and when renouncing.

(cherry picked from commit 21198bf1)

(cherry picked from commit 225b4921)

(cherry picked from commit d8cbd555)

* move BreakInvariantBounty to drafts

* fix bad imports

* rename Index.currentId to current

* use += operator for clarity

* rename Counter.Index to Counter.Counter

* move Counter to drafts

(cherry picked from commit 3e55408c)

(cherry picked from commit b4f87bb8)

(cherry picked from commit c12a1c68)

* add logo

* new readme

* add large logo

* improve readme

* Update README.md

* add link to guides

* remove leftover sentence

* 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

* Split enumerable and metadata implementations.

* Renamed ERC721Basic to ERC721, and ERC721 to ERC721Full.

* Fixed linter errors.