Update version to 0.4.0
Some quality tools allow command line flags to be passed in that cannot
be specified though config flags, add an option to pass these in.
Update readme to show options functionality
Merge pull request #75 from Bachmann1234/add_options

Add options
added myself to AUTHORS file
Merge pull request #72 from msabramo/tox_py33

tox.ini: Add py33
.travis.yml: Don't allow py34 failure