MOD use safe_asarray instead of np.asarray
MISC update my mailmap
added links to astropy and scipy workflow guids
Merge pull request #1564 from jaquesgrobler/contributor_guide_links

added links to astropy and scipy workflow guids
MOD address @mblondel's comments
MOD move generating matrix out of the loop
DOC: Fixed wrong link and formatting in decomposition docs
DOC: fixed latex and formatting in SVM docs
Merge pull request #1563 from kuantkid/sparse_knn_graph

KNN graph fails for sparse inputs
DOC more accurate comment in class weight computation
FIX make sure laplacian in spectral clustering test is really PSD
DOC: more consistency in metrics docstrings
DOC: More consistency in metrics and clustering metrics docstrings
DOC: more consistency in docstrings for unsup clustering metrics & missing link
DOC: fixed missed details in metrics docstrings
DOC: addressed more inconsistencies in metrics docstrings
ENH: use lgamma function from John D. Cook

Conflicts:
	sklearn/metrics/cluster/expected_mutual_info_fast.c
	sklearn/utils/lgamma.cpp
	sklearn/utils/lgamma.pyx
	sklearn/utils/setup.py
Merge branch 'master' into lgamma_port

Conflicts:
	sklearn/metrics/cluster/expected_mutual_info_fast.pyx
zero_one_loss now does normalize on default.
DOC add recall_score to new classification metrics listing