Add initial steps for django-registration

   - templates
   - basic view
   - .gitigore

Miss auth_user
Complete basic registration

- you need to initialize database "python manage.py syncdb" for
  registration to work;
- New user registration worked. The activaction email link is shown on
  the screen.
- Reset password is not working yet.
Merge pull request #4 from gary-pei/master

Add django-registration