ENH: BLAS level 3: xSYMM
ENH: BLAS level 3: xSYRK
BLAS level3 : syrk, syr2k
BLAS level 3: hemm, herk, her2k
added missing depend attributes (travis build fails on py3.3?)
clean up tests
BUG: Homogenezie nnz type to be int for all sparse matrix types.
DOC: poisson distribution is an
Merge pull request #2575 from cowlicks/nnz-type

BUG: Homogenezie nnz type to be int for all sparse matrix types.
Merge pull request #2504 from bburlo/blas3

ENH: linalg: expose a part of blas3 functionality
DOC: linalg: add BLAS level 3 routines to docs
Merge pull request #2578 from bburlo/poisson_doc

DOC: docstring example in stats.distributions