Allow changing theme to Holo.Light without crashing

Themes that attempt to change the settings theme's parent to
Holo.Light will end up crashing wifi settings.

Themers should override Theme.Settings.Base and leave Theme.Settings.Holo
alone.  Attempting to theme Theme.Settings.Holo will result in crashes
when accessing wifi settings.

This was patch was adapted from
https://github.com/tung91/android_packages_apps_Settings/commit/007f03b559c6d13115c63c4f601ebc4b9324d32d

Change-Id: I61951b892acac6304d2c3dd02668eb70af93eef9
Clean up search code.

Fix up coding style and add a few missing TypedArray.recycle() calls.
Also make filtering code more efficient.

Change-Id: Ie3824b41ae40010686ff3cb6cab7f12d19843834
Settings : Make search locale friendly

Change-Id: I3ae4b074af7a0ab4105f35d3ee8d6e5ef004af3d
Settings : Get actionbar post extra retrieval

Fetching the actionbar before the extras are utilized causes the parentActivityName
to be null and no home as up enabled.

Change-Id: Ic3395c4a2e0c04aee4efab5345cb604475691016
Show parent fragment name in option search.

For doing that, parent titles were missing for options placed in
fragments which are directly invoked by a settings header. Fixit.

Change-Id: Iad9340fa76eb6f2f38f4b0d7b84f2c7fa357b162