Elementium

Added
- Support for python 3.7 | [6f02f8d](https://github.com/actmd/elementium/commit/6f02f8dc0a305176bbfe3c1dfc1a2fd5abc22146)
- Removed support for python 3.3
- Bumped major version number to indicate potential for breaking due to parameter renaming.

Changed
- README
- Renamed `async` parameters to `asynchronous` for python 3.7 compatibility.

Added
- Support for python 3.6 | [a541344](https://github.com/actmd/elementium/commit/a541344da164f2f647fe78701b19bc4c949a9a98)

Changed
- README
- Modified how metaclasses were registered
- Removed support for python 3.2

Changed
- Versions updated | [253c9ef](https://github.com/actmd/elementium/commit/253c9efadda370a7132eeff94e6b26ba6ff76e75)

Bugfixes
- Documentation fix | [438d580](https://github.com/actmd/elementium/commit/438d580dd9395b75c8d5a37251b4857718faa2dc)

Changed
- Versions updated | [253c9ef](https://github.com/actmd/elementium/commit/253c9efadda370a7132eeff94e6b26ba6ff76e75)

Added
- More six tests | [b5f035a](https://github.com/actmd/elementium/commit/b5f035a95d42e9456909524ea342f056f1229b5b)

Added
- Tests added | [8156fa4](https://github.com/actmd/elementium/commit/8156fa4bdbd8104792a3d6c5258ad0640f70f36e)