Removing .idea directory.
Registration form overhaul for proper validation.

Adding forms.py: Declares the registration from class with correct
styling and custom validation. Username and email must be unique.
login.html: Changing to a link to the registration page instead of
using post.
register.html: Editing registration form to take advantage of the
registration form class and implement correct validation and style.
views.py: Overhaul of registration views - condensed into one view
which redirects to login page after completion. If the form fails to
pass validation or has not yet been submitted through post it loads
normally.
urls.py: Changing urls to reflect the change in views.py.