DOC IsotonicRegression wasn't in the changelog at all
P3K all of feature_extraction passes tests on Py2 and 3
DOC clarify column ordering in SVC scores

http://stackoverflow.com/q/15324593/166749
DOC fixing some more rst / sphinx errors :-/
DOC more sphinx stuff.
FIX: X was converted twice.
COSMIT DictVectorizer.inverse_transform readability
fix the kwarg name
updated the .c file
remade the cython with 0.18
Merge pull request #1767 from rmcgibbo/balltree_docstring

Small Fix: Balltree Docstring Example Has Wrong Keyword Arg
DOC CountVectorizer does NOT do stopword filtering by default
ENH allow SelectKBest to select all features in a parameter search
ENH don't recompute distances in MBKMeans

Previous code not only redid computations, but used 2 * n_clusters * batchsize
space to do it, orders of magnitude more than is required in the sparse case.

Fixes #1765.
ENH cut MiniBatchKMeans memory usage in half for large n_clusters

Also, changed logging message to reflect the (public) class that is logging,
not the (private) function.

New Cython code lives in utils.sparsefuncs, because it may prove more
generally useful.
DOC installation instructions: MacPorts, fix types, stdeb instructions
DOC Allowing a list of param_grids means GridSearchCV is more than grids

It's worth making clear that the user can effectively specify any sequence of parameters.
DOC clarify relationship between pos_label and average parameters for
PRF family
Merge pull request #1772 from jnothman/comment_exhaustive_search

DOC Allowing a list of param_grids means GridSearchCV is more than grids
Merge pull request #1773 from jnothman/prf_docstring

DOC clarify relationship between pos_label and average parameters