Add support for python 3.4
Add myself to authors file
Make .travis.yml use tox

Makes it more DRY and can see individual Travis jobs for each Python
version
Merge pull request #1 from msabramo/add-python3_travis_use_tox

Make .travis.yml use tox
While the previous way worked. This is more correct. relpath needs to have matching types and this function assumes it gets a string/unicode. However, relpath will sometimes return a binary type. This happens because sometimes it returns a hardcoded value. See posixpath.py in python27. These hardcoded values are not unicode in python2.
Merge branch 'add-python3' of github.com:Bachmann1234/diff-cover into add-python3
Merge pull request #65 from Bachmann1234/add-python3

Add python3