FIX hopefully fixing travis.
FIX OrthogonalMatchingPursuit normalized twice
DOC correct/copyedit linear model docstrings

Many models actually support sparse matrices at predict time, but
did not advertise this.
One more Python 3 fix in feature_extraction.rst
Update what's new
BUG: fix some numpy 1.3 compat issue
BUG: numpy 1.6 compat
:
Py3 fix
DOC improve svm sample weight example
DOC improve documentation of sample_weight, add to docstring.
TST small improvement of test for sample weight in svm
BUG: fix kde tests
DOC add missing links to the scorer and classication section
TST better testing of the PLS module

Now checks it returns the correct number of components, and not just the
maximum number of components.
FIX PLSSVD now returns the correct number of components

closes #1312
COSMIT small documentation tweaks
Add pycharm files in .gitignore
cosmit typo
ENH add multioutput support to KNeighborsRegressor