Merge tag 'android-4.4.3_r1.1' into HEAD

Android 4.4.3 release 1.1

Conflicts:
	CleanSpec.mk
	core/build_id.mk
	core/version_defaults.mk
	tools/releasetools/ota_from_target_files

Change-Id: Ie3e6d84510d105318f86124c0a13538416585542
build: Set ccache base to build top

This enables ccache sharing between different build tree paths.

Change-Id: I99636bdd2779a6ccf0649f027e35cf67df44b6ae
build: Allow building with OpenJDK

Change-Id: I6348bc1187240729f75f50d7ef91802c68e7788b