Added compatability for south
Update tox config to take advantage of the new 1.8 syntax
Merge pull request #132 from treyhunner/fix-south-migrations

Fix compatability for south
Clean up travis configuration
Print Django version as part of travis run
Removed reference to Django minor release in compatability detail
Merge pull request #133 from treyhunner/cleanup-test-matrix

Cleanup test matrix
add code health (landscape.io) badge.

tracks various metrics w.r.t. technical debt - https://landscape.io/github/treyhunner/django-simple-history