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

README.rst

doc/modules/neighbors.rst

scikits/learn/cluster/k_means_.py

scikits/learn/linear_model/setup.py

scikits/learn/metrics/__init__.py

scikits/learn/metrics/pairwise.py

scikits/learn/neighbors.py

scikits/learn/setup.py

scikits/learn/src/BallTree.cpp

scikits/learn/svm/base.py

scikits/learn/svm/sparse/base.py

scikits/learn/svm/tests/test_svm.py

scikits/learn/tests/test_neighbors.py