Small changes in Mentor model (we don't inherit from Reviewer anymore since model inheritance is not supported in datastore).
Small changes in Mentor model (we don't inherit from Reviewer anymore since model inheritance is not supported in datastore).

Patch by: Pawel Solyga
Reviewed by: to-be-reviewed

--HG--
extra : convert_revision : svn%3A32761e7d-7263-4528-b7be-7235b26367ec/trunk%401723

rhyolight/nupic.son,rhyolight/nupic.son,rhyolight/nupic.son