Merge pull request #5 from yahoo/python3

Add Python3 support
Merge pull request #6 from yahoo/plugintype_fix

Fix the plugintype plugin
Merge pull request #7 from dwighthubbard/master

Python3 fixes and code cleanups
Add tox configuration

Disable broken test
Fix the file plugin to expand the ~

Update the setup.py to use the number of git revisions to determine
the last digit of the version.

Added a test for the file: plugin.
Update setup info to indicate python3 support
Merge pull request #8 from yahoo/master

Merge changes from yahoo repo