get rid of debug output
Merge branch '28-matmult-na' into 30
adjust fudge factor
Merge branch '28-matmult-na' into 30
change R-admin to mostly mention Accelerate rather than vecLib
Merge branch '28-matmult-na' into 30
more tweaks in R-admin regarding OS X
Merge branch '28-matmult-na' into 30