improvement interpolate_H_pp
asm: intra_pred_ang8_2 asm code
asm: code for intra_pred[BLOCK_16x16] mode 2 and 34
Merge with stable
Merge with stable
cmake: tweak order of compiles to improve parallel build times

Move assembly and intrinsic files to front of the build
cleanup MVPNum
Merge with stable
slicetype: remove --refresh and use --open-gop(default: enable)
x265: help nit
cleanup initCU()
fix blockCbpBits[]
remove duplicate code
TEncSbac: remove hungarian prefixes from loop vars
add dts to x265_picture, handle same as x264
stats: simplify slice type lookup
asm: code for intra_pred[BLOCK_32x32] mode 2 and 34
move param fixups to Encoder::configure()
update/fix comments
white-space fixes, reorder for clarity

--HG--
extra : amend_source : c06f2b87987931998956976d7b7c451b5268f4f3