added a better optimized sgemv_n kernel for bulldozer and piledriver
modified sgemv_n for haswell
updated haswell optimized sgmv_n kernel
optimized sgemv_n kernel for sandybridge
added optimized sgemv_n kernel for nehalem
changed long to blaslong for windows compatibility
enabled optimized sgemv_n kernels for windows
changed default x86_64 sgemv_n kernel to sgemv_n.c
bugfix in sgemv_n.c
Merge pull request #430 from wernsaar/develop

added a better optimized sgemv_n kernel