LPS-33082

Hey Julio,


we are starting to prepare the StagedModelDataHandlers for all the staged entities but first we have to modify the model objects to implement the StagedModel interface. In case of message board portlet I started with the easiest one, the MBBan where the uuid is the only missing attribute. I changed the update and verify processes according to it as well.

cc'-ing: @matethurzo

thanks,
Daniel