Janitor: Cleanup names of scripted classes in Python

Avoid Rim prefix and use keyword alias to ensure backwards compability

ApplicationLibCode/ProjectDataModel/Surfaces/RimEnsembleStatisticsSurface.cpp

@@ -28,9 +28,6 @@
 
 #include <QFileInfo>
 
-// TODO: Use the alias concept prototyped below when the alias concept for class is ready
-// CAF_PDM_SOURCE_INIT( RimEnsembleStatisticsSurface, "EnsembleStatisticsSurface", "Surface" );
-// CAF_PDM_SOURCE_INIT( <class>       ,  <keyword>   , <alias>);
 CAF_PDM_SOURCE_INIT( RimEnsembleStatisticsSurface, "EnsembleStatisticsSurface" );
 
 //--------------------------------------------------------------------------------------------------