Move grid/filmstrip switching to ActionBar title "spinner"

Bug: 7233818
Bug: 7240846
Bug: 7258973

Tapping the title of the album, whether in filmstrip or
grid mode, allows switching between these modes using a
menu. The album name is now displayed when viewing pictures
in the filmstrip or zoomed in modes. Finally, no longer
allow switching to grid mode when not appropriate.

Change-Id: I4ee511feb7a74581fe185933ddd5110e5eb9feb0