update documentation, use DDOT and DGEMV when appropriate for [t]crossprod
get rid of unnecessary string variables - pass strings to BLAS directly
Merge branch '15-crossprod' into 16
Makefile and .save changes for matprod test
Merge branch '15-matprod-test' into 16
bug fix, use mat-vec and vec-mat for [t]crossprod
Merge branch '15-crossprod' into 16