GAL UI cleanup work (in progress)

Provider:
  * Move UI (e.g. separator) out of provider, create it entirely in adapter
  * Remove timestamp based disambiguation (TODO throttling some other way)
  * Add cursor "extras" to report total # of results on server
UI:
  * Rewrite background-foreground threading to be more efficient and
    signal changes back to UI by calling notifyDataSetChanged())
  * Separator strings per Rich's UI (not using real strings yet)
  * Remove link back to AutoCompleteTextView

NOTE:  There's a bug in ACTV that is causing the window size not to
change properly on notifyDataSetChanged().  Framework team to investigate.

Bug: 2249514
Change-Id: I183b200dcdaa268f0612d2de6442db28e1491d40
2 files changed