Removed change from previous commit which attached the DisplayStopDataFragment to the container with android.R.id.content, which does not seem to work on older platforms. The options menu in DisplayStopDataFragment no longer displays the ActionItems as text when the screen is large enough. Removed small progress spinner from DisplayStopDataFragment and replaced it with a progress spinner in the ActionBar which replaces the refresh ActionItem. Refactored DisplayStopDataFragment.