ProtectedAppsReceiver: fix NPE when components are null

 * To reproduce: create a folder at CustomLauncher3, lock it and leave the screen

Change-Id: I49a2e76fdaa3e375b0ea5aa2bb05eaa92528dd19
Merge commit '5d8d5cfaec835f7a4168131c1a508aa71bd788dd' into HEAD

Conflicts:
	AndroidManifest.xml
	src/com/android/settings/DevelopmentSettings.java
	src/com/android/settings/SettingsActivity.java

Change-Id: Ib30e4d5fab834c8ab345dd4a9586f21fa392bac6