Changes: Fixed crashing pt_mtoolbar.
Changes: Fixed crashing pt_mtoolbar.

RevBy: Mirek
Details: Make sure scenemanager exists before checking querying orientation from it.

nemomobile-graveyard/libmeegotouch,nemomobile-graveyard/libmeegotouch,nemomobile-graveyard/libmeegotouch,nemomobile-graveyard/libmeegotouch,nemomobile-graveyard/libmeegotouch,nemomobile-graveyard/libmeegotouch