Merge branch 'master' of github.com:scikit-learn/scikit-learn

.gitignore

doc/modules/sgd.rst

examples/document_classification_20newsgroups.py

examples/mlcomp_sparse_document_classification.py

examples/sgd/mlcomp_sparse_document_classification_sgd.py

scikits/learn/datasets/__init__.py

scikits/learn/datasets/base.py

scikits/learn/feature_extraction/tests/test_text.py

scikits/learn/feature_extraction/text/__init__.py

scikits/learn/feature_extraction/text/dense.py

scikits/learn/feature_extraction/text/sparse.py

scikits/learn/glm/coordinate_descent.py