Fixed bugs in 'auth_dev' module, added better unit test coverage.

lib/hawat/blueprints/auth_dev/__init__.py

lib/hawat/blueprints/auth_dev/forms.py

lib/hawat/blueprints/auth_dev/templates/auth_dev/login.html

lib/hawat/blueprints/auth_dev/test/__init__.py

lib/hawat/blueprints/users/forms.py

lib/vial/forms.py

lib/vial/test/__init__.py