Improve admin readability. Food for future rewrite.
Switch tests to use mysqlclient connector, and enable MySQL testing on Python 3.
Cleanup hvad.views. Make form generic views conform to Django semantics.
Merge pull request #225 from spectras/cleanup/views

Refactor and cleanup hvad.views. See #225 for details on possible updates to views.
Update from 'master' into feature/restframework