Bunch of improvements:
* Avoid using `else` when an exception is throwing
* Add `Makefile` with coverage test task
* Add unittests for forms.py
* Add unittests for views.py
Don't need to call autodiscover manually
Use the insert notation to override path
Revert the current behavior: always keep the params of the MailForm
Merge pull request #6 from thoas/master

Improvements + unittests for forms and views