Merge branch 'master' into nextgenv2

Manually resovled the following conflicts:
	vp10/common/blockd.h
	vp10/common/entropy.h
	vp10/common/entropymode.c
	vp10/common/entropymode.h
	vp10/common/enums.h
	vp10/common/thread_common.c
	vp10/decoder/decodeframe.c
	vp10/decoder/decodemv.c
	vp10/encoder/bitstream.c
	vp10/encoder/encodeframe.c
	vp10/encoder/rd.c
	vp10/encoder/rdopt.c

Change-Id: I15d20ce5292b70f0c2b4ba55c1f1318181481596