v3.0.0 RC (kevin1024#498)

* v3.0.0 RC

* Add credit for documentation improvements for @yarikoptic

Patch release 2.1.1 (kevin1024#490)

Increment version to v2.1.0 and add Python2.x deprecation warning (ke…

…vin1024#458)

* Increment version and add Python2.x deprecation warning

Change test to actually test no warnings when on python3

flake8 compliant

* fix development status classifier

Bump version to 2.0.1

Bump version to 2.0.0

Bump version to 1.13.0

bump version for release

bump version

persistence methods + Python 3.6 + pytest-asyncio

Allow injection of persistence methods + bugfixes (thanks @j-funk and @IvanMalison)
Support python 3.6 + CI tests (thanks @derekbekoe and @graingert)
Support pytest-asyncio coroutines (thanks @graingert)

version bump