Making test suite run again with Django 1.6. A reason was django-discover-runner, which exits if Django >= 1.6 is detected.
Fixes #83 -- Fixing floppyforms to work with current Django master (1.6.x). There was a semantic change in the widgets NumberInput.__init__ method. It's logic is now adopted in floppyforms.
Adding current django master as tested environment to tox.ini