FIX Move pooling_func to constructor.
FIX: remove deprecation warnings in learning curves under Python 3
Merge pull request #3090 from ogrisel/learning-curves-warnings

[MRG] FIX: remove deprecation warnings in learning curves under Python 3
COSMIT: use plural, there are 2 learning curves
Merge pull request #3066 from denisgarci/agglomeration-transform-constructor

[MRG+1] Move pooling_func to constructor.
add sample_weight to base score and weight_boosting staged_score
weight_boosting: unneeded np.copy
weight_boosting: include sample_weight in test_staged_predict
metrics: add sample_weight support
rm (default=None)
require sample_weight support for binary_metric
newline
atleast_2d.reshape -> reshape
weighted metrics: fix sample_weight handling for average=samples
format
metrics tests
doc: fix default
weighted metrics tests fixes
np.sum(np.multiply( -> np.dot(
update whats_new.rst