* The bigger one concerns fixtures. As django 1.2 resolves it by implementing natural keys, it's becoming a requirement.
* There was also problems 0002_auto__del_field_alias_mbox, my bad...
* It was possible to create aliases that point to addresses of other domains!
* Some path problems in the stats module.
* Some path problems with the autoreply.
perms object is no longer passed to builtins or filters, we use user instead
(it seems that perms content is different with Django 1.2)
#48 : I think I've found a way to include templatetags dynamically, using add_to_builtins.