Set ActionMode title to the number of selected files

After change of orientation ActionMode is recreated without previously
set title. It needs to be updated in onCreateActionMode callback.

Change-Id: If5f36e8ad6d1b5cf04ed242611fd037969d73517
Allow 3 AT (mnc05) to roam on T-Mobile in Austria

Change-Id: Ie1a62db9a48cfaf594ddda7b413299a9b587ddd4