Merge pull request #14 from hballard/2to3

Make package compatible w/ python 3 and python 2.

Merge pull request #13 from hballard/tests

Complete subscription_transport tests

Merge pull request #12 from hballard/tests

Added tests for subscription_manager module

Fixed RedisPubsub bugs on returning sub_id from subscribe method

and bugs in unsubscribe method

Fixed dependency error in setup.py; stubbed out test files

Also fixed minor issues in README.md

Modified README to reflect previous changes in subsriptions main package

Fixed naming error on main package as well as install instructions

Prepped repo for upload to pypi -- added setup.py, etc.

Includes adding MANIFEST.in, adding README.rst,
deleted requirements.txt, added tests package,
and modified main package name