augment django standard user model with mongo-stored "profile"

class UserExtension(object):
    profile = mongo_property('user.profiles', 'email', 'profile')

def hack_user(sender, *args, **kwargs):
    if UserExtension not in sender.__bases__:
	sender.__bases__ += (UserExtension,)

models.signals.pre_init.connect(hack_user, sender=User, dispatch_uid="moprofile_user_patch")