CVS commit by ogoffart: 

API to show different icon for group and metacontact in the contactlist.
The UI part is missing. I think metz whish to do it :-)


  M +1 -1      kopetegroup.cpp   1.30
  M +1 -1      kopetemetacontact.cpp   1.170
  M +103 -1    kopeteplugindataobject.cpp   1.11
  M +39 -2     kopeteplugindataobject.h   1.9