Feature/email confirmation flow

- Added an endpoint to resend the confirmation email
- Added an attribute to the template which checks 
   - Whether we are looking at current logged in user's profile page or not
   - And whether the current user's account has been confirmed already or not
- If not verified yet, we show a message and a button to the user allowing to resend the confirmation email

Fixes #1
Should this be https://github.com/artillery/django-user-accounts.git now?