TST some more tests for SGDClassifier input validation
ENH / TST better coverage of supervised clustering metrics, slight cleanup
DOC make unit test requirements a bit stricter. 80% is sub-par with current code-base
COSMIT pep8
COSMIT renaming chunk_size to batch_size in MiniBatchDictionaryLearning and MiniBatchSparsePCA
DOC add rename to whatsnew
Merge pull request #1468 from erg/random-failures-12345

Fix two random failures in test_common without setting np.random.seed()
Delete iris.dot in tree.rst doctest
FIX: seed blobs dataset to have a stable spectral clustering under OSX 10.8
cosmit pep8
Merge pull request #1478 from amueller/pep8

WIP cosmit pep8
Merge pull request #1451 from amueller/chunksize_batchsize_rename

MRG renaming chunk_size to batch_size in MiniBatchDictionaryLearning
Merge pull request #1470 from kuantkid/fix_spectral_cluster_test

FIX spectral clustering test error in OSX and ADD spectral embedding to sphere examples
Add comment in test_spectral_clustering_sparse
changed n_folds > min_labels error to warning

Also made indentations for continuation lines pep8. See
http://www.python.org/dev/peps/pep-0008/#indentation

Conflicts:

	sklearn/cross_validation.py
removed tests for the old error.

Is it possible to test for warnings?
added test for warning. Added warning category

Conflicts:

	sklearn/cross_validation.py
removed a carriage return in warning message
added space between # and text
FIX GridSearchCV on lists that I broke in 8b3e4d06c05ac82130176161404f0434b74fe2c7