ENH: Add support for ATLAS > 3.9.33.

Recent ATLAS combines the previous libraries into two

* libsatlas -- single threaded.
* libtatlas -- threaded.

This fix is a bit of hack in that ATLAS > 3.9.33 is treated as a new,
separate library covered by atlas_3_10_info, but the latter derived
from atlas_info, which treats the cblas, atlas, and atlas_lapack
libraries separately, so the new info has a bit of repetition.

The alternative would be to rewrite atlas_info, but that can wait
on a larger cleanup of the build system.

Closes #3774.

SGEMV in Accelerate framework will segfault on MacOS X version 10.9
(aka Mavericks) if arrays are not aligned to 32 byte boundaries
and the CPU supports AVX instructions. This can produce segfaults
in numpy.dot if we use numpy.float32 as dtype. This patch overshadows
the symbols cblas_sgemv, sgemv_ and sgemv exported by Accelerate
to produce the correct behavior. The MacOS X version and CPU specs
are checked on module import. If Mavericks and AVX are detected
the call to SGEMV is emulated with a call to SGEMM if the arrays
are not 32 byte aligned. If the exported symbols cannot be
overshadowed on module import, a fatal error is produced and the
process aborts. All the fixes are in a self-contained C file
and do not alter the _dotblas C code. The patch is not applied
unless NumPy is configured to link with Apple's Accelerate
framework.

support rpath for GNU Fortran compiler.

Similar to C builds which always have debug info.

Note that there are a few similar patches posted to gh-4101 and gh-4245.
Those were all patches to msvc9compiler in Python distutils.
Monkeypatching ``MSVCCompiler.link`` is less easy than this change
to ``config._check_compiler``; effect should be the same.

Also updates the error message shown when initializing MSVC fails.

[ci skip]

add openblas_lapack info which checks if it embedds lapack so
lapack_info will point to openblas
the normal openblas info does not check so it may or may not embed
lapack.
closes gh-4192

the get_libs function assumes there is no default to return the default
it was asked to return in that case.
Closes gh-4607