Removed LiteAttributes, made Nicks use Attributes. Added category and strvalue fields to Attribute. Made Attributes accessible through an AttributeHandler, like most other advanced properties.

src/server/caches.py

@@ -100,6 +100,7 @@ def field_pre_save(sender, instance=None, update_fields=None, raw=False, **kwarg
     for field in update_fields:
         fieldname = field.name
         new_value = field.value_from_object(instance)
+        # try to see if there is a handler on object that should be triggered when saving.
         handlername = "_%s_handler" % fieldname
         try:
             handler = _GA(instance, handlername)