ENH use memset instead of for loop
Typo
Update what's new
Merge pull request #2745 from arjoly/mse-criterion

[MRG] Optimize mean square criterion
Merge pull request #2754 from eltermann/doc-fix-tfidf

Fixed documentation typo
Add mean_absolute_error to scorers.
Merge branch 'master' of https://github.com/scikit-learn/scikit-learn
Fix doctest.
COSMIT: remove unused import
conflict fix
small fixes
Merge pull request #1971 from jaquesgrobler/DOC_olivier_tut

MRG - Merge old tutorial into docs
sphinx colon error fix
FIX #1565: fix race condition in parallel pre-dispatch by upgrading joblib
Update whats_new.rst for race condition fix
Merge pull request #2756 from ogrisel/joblib-0.8.0a3

[MRG] FIX #1565: fix race condition in parallel pre-dispatch by upgrading joblib
FIX #2645: fix 20 newsgroups downloader under Python 3
ENH/FIX Change Tree underlying data structure

* avoid segfault (#2726) by setting base on numpy arrays
* A struct array for tree nodes and values array (size indeterminate at
compile time) are the only underlying structure, so each node is locally
grouped memory, and joblib dumps will save only two numpy files per
tree.
* predict() uses the value array's take method, reducing code repetition
Refactor cv code
Clean up