change mediaurlhandler to use naali.getEntity (gives Scene::Entity), not the PyEntity.cpp wrapped rexviewer.getEntity anymore.
change mediaurlhandler to use naali.getEntity (gives Scene::Entity),
not the PyEntity.cpp wrapped rexviewer.getEntity anymore.

also fix a bug that mouse clicks on mediaurl displays were not handled when mediaplayerservice isn't there.

antont/tundra,antont/tundra,antont/tundra,jesterKing/naali,antont/tundra,BogusCurry/tundra,BogusCurry/tundra,pharos3d/tundra,antont/tundra,BogusCurry/tundra,AlphaStaxLLC/tundra,realXtend/tundra,antont/tundra,realXtend/tundra,BogusCurry/tundra,realXtend/tundra,antont/tundra,AlphaStaxLLC/tundra,realXtend/tundra,realXtend/tundra,pharos3d/tundra,pharos3d/tundra,AlphaStaxLLC/tundra,jesterKing/naali,pharos3d/tundra,jesterKing/naali,AlphaStaxLLC/tundra,realXtend/tundra,BogusCurry/tundra,AlphaStaxLLC/tundra,AlphaStaxLLC/tundra,jesterKing/naali,pharos3d/tundra,BogusCurry/tundra,jesterKing/naali,jesterKing/naali,pharos3d/tundra,jesterKing/naali