Merge 'android-4.3_r2.1' into 'jb-mr2'

Android 4.3 release 2.1

Conflicts:
	driver/rsdBcc.cpp
	driver/rsdCore.cpp
	driver/rsdIntrinsicBlur.cpp
	driver/rsdIntrinsicColorMatrix.cpp
	driver/rsdIntrinsicConvolve3x3.cpp
	driver/rsdIntrinsicLUT.cpp