* remove HasNoEther, HasNoTokens, HasNoContracts, and NoOwner

* remove unused ERC223TokenMock

* remove Contactable

* remove TokenDestructible

* remove DeprecatedERC721

* inline Destructible#destroy in Bounty

* remove Destructible

* Move contracts to subdirectories

Fixes #1177.

This Change also removes the LimitBalance contract.

* fix import

* move MerkleProof to cryptography

* Fix import

* Remove underscores from event parameters.

Fixes #1175

* Add comment about ERC

* rename ERC20 to IERC20

* move ERC20.sol to IERC20.sol

* rename StandardToken to ERC20

* rename StandardTokenMock to ERC20Mock

* move StandardToken.sol to ERC20.sol, likewise test and mock files

* rename MintableToken to ERC20Mintable

* move MintableToken.sol to ERC20Mintable.sol, likewise test and mock files

* rename BurnableToken to ERC20Burnable

* move BurnableToken.sol to ERC20Burnable.sol, likewise for related files

* rename CappedToken to ERC20Capped

* move CappedToken.sol to ERC20Capped.sol, likewise for related files

* rename PausableToken to ERC20Pausable

* move PausableToken.sol to ERC20Pausable.sol, likewise for related files

* rename DetailedERC20 to ERC20Detailed

* move DetailedERC20.sol to ERC20Detailed.sol, likewise for related files

* rename ERC721 to IERC721, and likewise for other related interfaces

* move ERC721.sol to IERC721.sol, likewise for other 721 interfaces

* rename ERC721Token to ERC721

* move ERC721Token.sol to ERC721.sol, likewise for related files

* rename ERC721BasicToken to ERC721Basic

* move ERC721BasicToken.sol to ERC721Basic.sol, likewise for related files

* rename ERC721PausableToken to ERC721Pausable

* move ERC721PausableToken.sol to ERC721Pausable.sol

* rename ERC165 to IERC165

* move ERC165.sol to IERC165.sol

* amend comment that ERC20 is based on FirstBlood

* fix comments mentioning IERC721Receiver

* fix: refactor sign.js and related tests

* fix: remove unused dep

* fix: update package.json correctly

* Fixed a SplitPayment test

* Deleted unnecessary function.

* Improved PostDeliveryCrowdsale tests.

* Improved RefundableCrowdsale tests.

* Improved MintedCrowdsale tests.

* Improved IncreasingPriceCrowdsale tests.

* Fixed a CappedCrowdsale test.

* Improved TimedCrowdsale tests.

* Improved descriptions of added tests.

* add note about pulling upstream changes to release branch

* add comment about upstream changes in merging section

* ERC721 pausable token

* Reuse of ERC721 Basic behavior for Pausable, split view checks in paused state & style fixes

* [~] paused token behavior

* Add ERC165Query library

* Address PR Comments

* Add tests and mocks from #1024 and refactor code slightly

* Fix javascript and solidity linting errors

* Split supportsInterface into three methods as discussed in #1086

* Change InterfaceId_ERC165 comment to match style in the rest of the repo

* Fix max-len lint issue on ERC165Checker.sol

* Conditionally ignore the asserts during solidity-coverage test

* Switch to abi.encodeWithSelector and add test for account addresses

* Switch to supportsInterfaces API as suggested by @frangio

* Adding ERC165InterfacesSupported.sol

* Fix style issues

* Add test for supportsInterfaces returning false

* Add ERC165Checker.sol newline

* feat: fix coverage implementation

* fix: solidity linting error

* fix: revert to using boolean tests instead of require statements

* fix: make supportsERC165Interface private again

* rename SupportsInterfaceWithLookupMock to avoid name clashing

* Changed .eq to .equal

* Changed equal(bool) to .to.be.bool

* Changed be.bool to equal(bool), disallowed unused expressions.

* fix off by one error in _burn and _burnFrom

* add tests for off-by-one error

* change amount used

* tests: use stages for the travis execution

Fixes #694

* add comments as suggested by @nventuro

* move the unit tests first, as suggested by @frangio

* make stages clearer as suggested by @nventuro

* tests: use stages for the travis execution

Fixes #694

* add comments as suggested by @nventuro

* move the unit tests first, as suggested by @frangio

* make stages clearer as suggested by @nventuro

* update the stage names as suggested by @frangio

* Run all tests in parallel

* added names

* Now forcing Unix linebreak style.

* Added linebreak style for Solidity files.

* make StandardToken state variables private

* simplify mocks

* document new internal functions

* fix link to ERC20 document

* revert order of Transfer and Mint events

* Revert "simplify mocks"

This reverts commit 371fe3e567e0ec894caa8d5f14ad590b18c5ae86.

* add tests for new internal functions

* add check for null account

* add checks for balances and allowance

* add inline docs to BurnableToken._burn

* remove redundant checks and clarify why

* Added non-target bounty test

* Increased ERC721 testing coverage.

* Addressed review comments.

* fix linter error

* Fixed linter error

* Removed unnecessary bouncer require

* Improved Crowdsale tests.

* Added missing SuperUser test.

* Improved payment tests.

* Improved token tests.

* Fixed ERC721 test.

* Reviewed phrasing.

* Added Math.average

* Removed assertion.

* Add Modulo operation for getting the quotient

* Improved modulo tests and implementation.

* Removed assertion.

* Made ERC721.exists internal.

* Removed exists ERC165 identifiers

used dos2unix program

* Moving towards chai.should.

* Fixed failing tests.

* Fixed linter errors.

* Revert package-lock.json changes.

* Fixed failing tests.

* s/eq/equal

* Addressed review comment

* feat: use require in SafeMath

* fix: grammar with revert

* Deploy the contract with the designated owner

* Fixed TX origin.