Build OpenBLAS in 64-bit mode on x86_64
Fix the way INTERFACE64 is passed for openblas build.
Merge branch 'master' into vs/blas64
Use 64-bit interface to call BLAS/LAPACK on x86_64
Build ARPACK in 64-bit mode.
64-bit mode for suitesparse.
Merge recent lapack updates, and use Int instead of Int32 for the interfaces.

Conflicts:
	base/lapack.jl
import iostring from libuv-fork into base
Update blas.jl and lapack.jl on the blas64 branch to use
the updated ccall stuff (without dlsym).
Merge branch 'master' into vs/blas64

Conflicts:
	base/blas.jl
	base/lapack.jl
Update libuv version to use the one on master.
Clean up remnants of the merge.
Build SuiteSparse with support for 64-bit BLAS.
Update URLs for mailing lists in README.
Merge branch 'master' into vs/blas64

Conflicts:
	README.md
Attempt avx compilation for fftw
force linking of Julia binary during successive installs
Remove BitArray type parameter
fix #1727
fix #1647