Comments in the go_extras functions

- heh, I didn't know these were actually defined somewhere

go/go/templatetags/go_extras.py

+# Django Imports
 from django import template
+
+# App Imports
 from go.models import RegisteredUser
-register = template.Library()
 
+# To be a valid tag library, the module must contain a module-level variable
+# named register that is a template.Library instance, in which all the tags and
+# filters are registered.
+register = template.Library()
 
+"""
+    check if a user is registered
+"""
 @register.filter
 def is_registered(user):
+    # try getting the RegisteredUser of the current user
     try:
         registered = RegisteredUser.objects.get(username=user.username)
+        # if it works then the user is registered
         return True
     except RegisteredUser.DoesNotExist:
+        # if they don't exist then they are not registered
         return False
 
-
+"""
+    check if a user is approved
+"""
 @register.filter
 def is_approved(user):
+    # try getting the RegisteredUser of the current user
     try:
         registered = RegisteredUser.objects.get(username=user.username)
+        # if they exist, return whether or not they are approved (boolean)
         return registered.approved
     except RegisteredUser.DoesNotExist:
+        # if they don't exist then they are not approved
         return False