Major rearchitecting and cleanup.
Fixing tests.
Ignore tox test file directory.
Test python 2.6, too.
Renaming test so py.test will discover it.
Actually fixing tests; as it turns out, test discovery wasn't working for py.test.
Adding travis.yml for CI.
Adding test status to readme.
Use six-based imports rather than trying the python2 location followed by the python3.
Adding pypi and downloads badges.