Added optimized sgemm_kernel
Merge branch 'develop' of github.com:xianyi/OpenBLAS into bulldozer
Merge branch 'bulldozer' of git://github.com/wernsaar/OpenBLAS into bulldozer
Used sgemm bulldozer kernel on 64 bit.
Disable the warning of sgemm bulldozer kernel.
Set the affinity. Only use 1 core of each  module on bulldozer.
Merge branch 'develop'
Merge pull request #257 from staticfloat/develop

Add in return value for `interface/trtri.c`
Merge branch 'develop'
Refs #259. Fixed missing LAPACK functions in shared library.
Merge branch 'develop'
Respect user's LDFLAGS
Fixed #261. Use strncmp instead of a comparing trick.
Merge branch 'ldflags' of https://github.com/sfabbro/OpenBLAS into sfabbro-ldflags
Fixed the FMA3 detection bug.
Fixed #260. Fixed generating 32-bit shared library on previous commit.
Merge branch 'sfabbro-ldflags' into develop
Refs #262. Added executable stack markings.
Merge branch 'develop' into bulldozer

Conflicts:
	kernel/x86_64/KERNEL.BULLDOZER
Refs #263. Rollback bulldozer and piledriver kernels to barcelona kernels.