Fixes: MAppletRunner leak
Fixes: MAppletRunner leak

RevBy: Adrian Yanes

Details: MAppletRunner::appletInstanceDataStore was not deleted.
Caused random segmentation faults on ut_mappletrunner.

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