added tests to sep.as as workaround for gfortran-4.8.x
Increased the Threshold value in sep.in
modified makefile for acml6.1
added code for the size of n
small optimization on dgemm_kernel for N=1
modified sources for OS Darwin
increased NMAX to 128
Ref #458: Backport, sandybrigde uses nehalem zgemm kernel
Merge pull request #479 from wernsaar/develop

workaround for sandybridge zgemm kernel