updated build

 Changes to be committed:
	modified:   CleanSpec.mk
	modified:   core/Makefile
	modified:   core/config.mk
	modified:   core/dumpvar.mk
	modified:   core/tasks/kernel.mk
	modified:   envsetup.sh
	modified:   target/product/telephony.mk
	new file:   tools/droiddoc/templates-sdk/assets/images/styles/device_nexus5_blank_land_span13.png
	new file:   tools/droiddoc/templates-sdk/assets/images/styles/device_nexus5_blank_port_span5.png
	modified:   tools/releasetools/ota_from_target_files
	modified:   tools/roomservice.py