Merge tag 'android-4.4_r1' into HEAD

Android 4.4 Release 1.0

Conflicts:
	core/Makefile
	core/build_id.mk
	core/cleanbuild.mk
	core/combo/TARGET_linux-arm.mk
	core/combo/TARGET_linux-x86.mk
	core/combo/arch/arm/armv7-a-neon.mk
	core/definitions.mk
	core/dex_preopt.mk
	core/host_java_library.mk
	core/java.mk
	core/main.mk
	core/tasks/product-graph.mk
	core/tasks/vendor_module_check.mk
	core/version_defaults.mk
	envsetup.sh
	target/board/generic/BoardConfig.mk
	target/product/core.mk
	target/product/generic_no_telephony.mk
	target/product/languages_full.mk
	target/product/sdk.mk
	tools/releasetools/edify_generator.py
	tools/releasetools/ota_from_target_files

Change-Id: Ib79356b10e23f51637f679fc191facc24a55e999
Google, it built before. Don't error because unused build variables are declared in an Android.mk

Change-Id: I63db353c5db8f7a67bdc1ecf7b53c8e4e572f74a