Revert "Disable settings search on all subactivities."

This reverts commit 4fed08dca6d695d7f49ee70fdaf2faee8e6a728c.
QuickBoot: enable QuickBoot Settings UI

Add QuickBoot enable item in DevelopmentSettings.

Change-Id: Id2aaec4ad3e85f51235db4c25d49136a26502e20

Conflicts:
	res/xml/development_prefs.xml
	src/com/android/settings/DevelopmentSettings.java

Conflicts:
	src/com/android/settings/DevelopmentSettings.java
Fix Derp
Redesign Z-Extras Settings
Derp Fixes