Cleaning up single-pane layout. Phase I.

o Now using an overlay to determine whether to use a two-pane
or single-pane layout.

o Fixing search mode layout on the phone.

o Moving search activity to activities and renaming it

o Setting a custom theme for contact pickers

Change-Id: Iafe61df60206fbdab554c1772b05ca0e5bd74f6f
8 files changed