admin/util: Simplify process_modelformset() and avoid dual-instancing
README: Add a travis badge
tests: Swap the order of two tests
admin/util: Get rid of an unnecessary duplicate call
Cleanup: Remove unused import
Removing Languages from Django admin

The preferred way to alter languages is using our ADMIN. Also moved
the code to forms.py and did minor simplifications to form code.
Bugfix: Make delete action work again

Before this the link used in the delete action was not providing a
correct URL (without the language code at the begining) and thus the
action din't work.