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
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
Merge branch 'master' into vs/blas64

Conflicts:
	extras/arpack.jl
	extras/suitesparse.jl
Merge branch 'master' into vs/blas64

Conflicts:
	extras/arpack.jl
Update openlibm on vs/blas64
Merge branch 'master' into vs/blas64

Conflicts:
	extras/suitesparse.jl
Added timsort, plus misc. sort updates
* removed _jl_ prefix from front of function calls
* removed _lt suffix from function variants
* provided sort functions: quicksort!, mergesort!, insertionsort!,
  and timsort!, along with *_r! variants for reverse sorting,
  and _by! variants for sorting with a function.  These functions
  are not exported, but can easily be accessed with

    Base.quicksort!()
    Base.mergesort!()
    Base.insertionsort!()
    Base.timsort!()
Fixes to make tests pass.