Squashed 'hypermath/' changes from ea57981..0639966

0639966 Fix dumb mistakes
2a0957e Add hpmMat4Vec(Array)Mult
ee240cb README typo

git-subtree-dir: hypermath
git-subtree-split: 0639966d4e02a426f90877c23cfb4432ad3ac577
Merge commit '6c2be226b3f1c235f5732345225f6a39c6cb5790'
Add m*vector! m*vector-array!