Added inital GSoC module package structure.

Set ASCII-only cleaner for first and last name when dealing with roles.

Changed the parameter from ancestor to ancestors to accommodate a list of ancestors.

updateOrCreateFromFields is made to call updateOrCreateFromKeyName. updateOrCreateFromFields called self._model.get_or_insert which only creates new entities but doesn't update the properties if the entity already exists. So updateOrCreateFromFields is now made to call updateOrCreateFromKeyName which actually updates the entity properties if entity already exists. Reviewed by: Lennard de Rijk