Initial mt_invert asm reimplementation
Better mt_invert asm
Remove unaligned sse2 version of mt_invert

It didn't work and it's slower than pure C version anyway. Do we
actually need aligned sse2?
Fix broken asm detection

Regression in 5ec787d0a5c5f148fb9473c2a5112641a5a08b24
Rewrite mt_binarize asm