Changes: MSliderView and related private class codes where modified          to draw / resize themselves only when it is strictly necessary
Changes: MSliderView and related private class codes where modified
         to draw / resize themselves only when it is strictly necessary

RevBy: Anna Gadomska

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