Removed references to User.is_member(), which was removed from the acl branch.
New access: lookup_member

Signed-off-by: Martin Stone <martin@d7415.co.uk>
Core/maps: has_access now always returns a boolean.

Signed-off-by: Martin Stone <martin@d7415.co.uk>
Core/loadable: The check on a channel's max access was always using self.name even if a different access level was specified.

Signed-off-by: Martin Stone <martin@d7415.co.uk>
createdb.py: Migrate wasn't migrating the sequence ID for groups.

Signed-off-by: Martin Stone <martin@d7415.co.uk>
newaccess: Added a missing session.rollback().

Signed-off-by: Martin Stone <martin@d7415.co.uk>
!addgroup: Fixed syntax error.

Signed-off-by: Martin Stone <martin@d7415.co.uk>