[svn] Add user registration and user profiles.

Used modified versions of django-registration and django-profiles , both on bitbucket.

The Person model is now set up as the profile for auth.User s.

I set up a requestcontext so that settings is automatically passed to every template, no need to repeat ourselves in views. However, this needs to be refined: I will soon change it to only pass a subset of settings. E.G. we do not need to be passing the DB login and password!
Copied from http://cucc@cucc.survex.com/svn/trunk/expoweb/troggle/, rev. 8231 by aaron @ 1/29/2009 11:02 PM

templates/registration/registration_complete.html

@@ -0,0 +1,13 @@
+{% extends "base.html" %}
+
+{% block title %}
+registration_complete.html | {{ block.super }}
+{% endblock %}
+
+{% block header %}
+<h1>registration_complete.html</h1>
+{% endblock %}
+
+{% block content %}
+Thank you for signing up. An email with the activation code has been sent to your inbox. 
+{% endblock %}