Improve search UX prior to load being finished.

Show a informative hint in that case.
Also clean up code somewhat.

Change-Id: I57f37bc60fbaef2ea0db0b0c3227df125b0e4ab9
Check locale when populating DB instead of using separate receiver.

This makes reloading the search data race condition free. Previously,
when invoking search directly after the locale change, one would get the
results for the old or the new locale depending on timing between the
broadcast being delivered and the activity restart.

Change-Id: I35bc11a7f68e655e00fe53b829deea613da74f69
DisplayColor: Properly handle a minValue

* Previously setting anything as a minValue would cause the
  percentages to get out of whack. For instance, setting it to 35
  would cause the maximum percentage to climb above 100% as well
  as still allowing the value to be set lower than the min.
* This makes the maximum for the slider the max value minus the min
  (so we get the proper spread for min to max) and then adds the min
  back on before setting so we can't possibly go below the min.

Change-Id: I8dcdc422f54847940351fae10c74af6301d1e1be
Settings: Remove security preferences from lockscreen options.

    - Since we merged all security xml's, the container is now populated
    with preferences that we don't need within lockscreen security options.
    This patch removes the preferences.

Change-Id: I590df9293f293aa9048ce4c58813f449d88867b4