whats_new.rst
Merge pull request #2576 from ankit-maverick/issue2560

Fixing issue 2560 : Imputer bug with median and dense input
Test correctness of average_precision_score.
Merge branch 'master' of github.com:scikit-learn/scikit-learn
Remove some warnings.
FIX the option affinity wasn't used in the hierarchical clustering
DOC metrics and hierarchical clustering
Add docstrings to _auc and _average_precision.
s/speed/latency/g
added section on model complexity
fix: Huber loss function in gradient_boosting fails if negative_gradient is not called before __call__; now computes on-demand.
add huber loss bug fix to whats new
Merge pull request #2566 from Manoj-Kumar-S/constant-output

Constant output dummy classifier.
What's new: DummyClassifier now supports constant output
now compares linear vs svr vs rf
Merge branch 'master' into gbrt-enh-stackrec-greedy

Conflicts:
	sklearn/ensemble/_gradient_boosting.c
	sklearn/tree/_tree.c
	sklearn/tree/_tree.pxd
	sklearn/tree/_tree.pyx
	sklearn/tree/tree.py
BUG: ValueError was assigned as local variable!
COSMIT: no need for parentheses.
More robust unit tests for fast_dot.
Remove warnings in ProbabilisticPCA tests.