Organizer module: put back QOrganizerCollectionEngineId and QOrganizerItemEngineId classes
Organizer module: put back QOrganizerCollectionEngineId and QOrganizerItemEngineId classes

Reviewers: Hugo Parente Lima <4149ba590530c5cd07e8f8a561f4e06e17776179@gmail.com>
           Luciano Wolf <luciano.wolf@openbossa.org>

PySide/Mobility,PySide/Mobility,PySide/Mobility,PySide/Mobility,PySide/Mobility