[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

expo/forms.py

@@ -1,6 +1,10 @@
 from django.forms import ModelForm
-from models import Cave
+from models import Cave, Person
 
 class CaveForm(ModelForm):
     class Meta:
-        model = Cave
+        model = Cave
+
+class PersonForm(ModelForm):
+    class Meta:
+        model = Person