ENH: BLAS level 3: xSYMM
ENH: BLAS level 3: xSYRK
BLAS level3 : syrk, syr2k
BLAS level 3: hemm, herk, her2k
ENH: linalg: sqrtm matrix square root speedup with tests and informal benchmarks
ENH: informal sqrtm benchmark
MAINT: remove redundant code
MAINT: use more vectorization
added missing depend attributes (travis build fails on py3.3?)
clean up tests
stats: fix explicit formulas for the dlaplace stats
add a test
MAINT: rename test data files with invalid filenames on Windows. Closes gh-2558
tweak tests
BUG: runtests: pass extra arguments properly to Nose
MAINT: stats:  Use special.xlogy to compute entropy of discrete distributions.

This simplifies the code, and avoids spurious RuntimeWarnings that can occur
when a probability is 0.
Merge pull request #2553 from WarrenWeckesser/stats-ent-xlogy

MAINT: stats:  Use special.xlogy to compute entropy of discrete distributions
Merge pull request #2565 from rgommers/fix-git-on-windows

MAINT: rename test data files with invalid filenames on Windows.
MAINT: blocksize is now less confusing
Merge pull request #2532 from argriffing/sqrtm-with-sylvester

ENH: linalg: use a block algorithm for sqrtm