Merge branch 'master' of https://github.com/scikit-learn/scikit-learn
Sparse matrix support in KMeans.
Merge pull request #4 from glouppe/dev-doc

Documentation
randomized_range_finder -> randomized_power_iteration
Adapted examples for alpha scaling
DOC: Cosmits on the Support page
FIX docstring
Merge branch 'master' into sparse-coder
PEP8
Vectorized news20 dataset loader.
Change logsum to logsumexp for comparability with scipy
Fix broken duplicated / tests and more practical init
BUG: fix scale_C bug in svm
ENH prettify kmeans vs minibatch kmeans example
ENH adjust subplots to look good on the web.
TESTS: remove deprecated NeighborsClassifier calls
Merge multilabel branch with master.

Conflicts:
	sklearn/datasets/_svmlight_format.c
	sklearn/datasets/_svmlight_format.pyx
	sklearn/datasets/tests/test_svmlight_format.py
	sklearn/preprocessing/__init__.py
ENH: Parallel fit/predict/predic_proba/feature_importances in forest
Check that LabelBinarizer was fitted.
FIX: Ensure random random_states