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
MAINT: stats: Simplified the calculation of Pearson's R.

* Removed the common factor 'n' from the numerator and denominator in
  the calculation of Pearson's R.  (Closes the issue gh-2512.)
* Added basic tests of pearsonr. (All the existing tests were for perfect
  correlation or anticorrelation.)
* Modified stats.mstats.pearsonr to not raise RuntimeWarnings when abs(r) == 1.
stats: fix explicit formulas for the dlaplace stats
stats: replace a print() with a warning
Merge pull request #2556 from WarrenWeckesser/stats-pearsonr-calc

MAINT: stats: Simplified the calculation of Pearson's R.
add a test
Merge pull request #2563 from bburlo/print_warn

MAINT: stats: replace a print() with a warning
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.