v0.12.1
Change lots of uses of future.standard_library to future.backports
More updates and improvements to the docs
Add future.moves.queue
Remove dependency on ``importlib`` for Py2.6 support (issue #49)
Merge branch 'master' of https://github.com/Veedrac/python-future into develop
Merge branch 'develop'
Improve the bytes_to_native_str() family of functions in future.utils
Bump version for v0.12.1