Merge branch 'samples_generator' of git://github.com/glouppe/scikit-learn into samples_generator

benchmarks/bench_glmnet.py

benchmarks/bench_lasso.py

benchmarks/bench_plot_lasso_path.py

benchmarks/bench_plot_nmf.py

benchmarks/bench_plot_svd.py

benchmarks/bench_sgd_regression.py

benchmarks/bench_svm.py

doc/datasets/index.rst

doc/modules/classes.rst

examples/cluster/plot_ward_structured_vs_unstructured.py

examples/feature_selection_pipeline.py

examples/manifold/plot_compare_methods.py

examples/manifold/plot_swissroll.py

examples/plot_rfe_with_cross_validation.py

scikits/learn/datasets/__init__.py

scikits/learn/datasets/samples_generator.py

scikits/learn/datasets/tests/test_samples_generator.py

scikits/learn/feature_selection/tests/test_feature_select.py

scikits/learn/feature_selection/univariate_selection.py

scikits/learn/mixture/tests/test_gmm.py