added benchmark for gemv
adjusted number of threads for small size
adjust number of threads for sgemv and dgemv
adjust number of threads for small size in cgemv and zgemv
changed string GFORTRAN to lowercase
added blocked sgemv_n and microkernel for bulldozer and piledriver
performance optimizations for sgemv_n
don't use this sgemv_n on Windows
added optimized sgemv_t for bulldozer and piledriver
added sgemv_t microkernel for sandybridge
bugfix in sgemv_t_microk_sandy.c
added sgemv_t microkernel for haswell
added sgemv_n microkernel for sandybridge
optimized sgemv_n_microk_sandy.c
added sgemv_n microkernel for haswell
Merge pull request #419 from wernsaar/develop

added optimized sgemv kernels for Sandy Bridge, Haswell, Bullldozer, and Piledriver.