Django-registration-email

- Added login_remember_me view function
- Added remember_me field to EmailLoginForm

- Changed URL settings due to misuse of get_success_url function in
django-registration app
- updated to support django-registration's new class based views

- updated Manifest.in to include missing style sheet

- stripping whitespace from email string in registration form

- Changed deprecated import

- using hashlib instead of deprecated md5 module