added pxd to Manifest (to be included in source tarball)
Merge remote-tracking branch 'upstream/master'
PY3 fix string literal syntax error
TST skip Graphviz export docstring in trees

Leaves temp files lying around on Python 3.x.
FIX: remove -funroll-all-loops
FIX: ur strings are not supported in Python 3.3
ENH remove _is_1d and _check_1d_array thanks to @GaelVaroquaux
flake8
ENH raise ValueError with row vector if multilabel or multioutput is not supported
ENH being less permissive thanks to @jnothman
DOC add example is_multilabel
ENH handle properly row vector
Flake8
ENH better error message
FIX switch to the new format syntax
ENH prettier error message for _binary_clf_curve with bad input shape
ENH use ravel instead of atleast_1d and squeeze whenever possible
ENH coherently input checking for regression metrics
ENH dryer thanks to @jnothman
TST stronger test for _column_or_1d function