Merge tag '2.2.0' into develop

2.2.0
Add py.test generated runtests.py in order to support systems running distutils
Add python setup.py test support
Add .travis.yml configuration file
Add travis badge
Merge pull request #57 from timothycrosley/feature/fix-issue-55-setup-test-support

Feature/fix issue 55 setup test support
isort imports
Bump version to 2.2.1
Merge branch 'release/2.2.1'