Implemented a check for ndim exceeding two in the utils.check_arrays function
Removed unnecessary variable n_dim in utils.check_arrays, removed unnecessary parens in same place
Trivial change in utils.check_arrays from > 2 to >=3 in attempt to rebuild Travis CI
Merge pull request #2958 from hamsal/check_arrays_n_dim

[MRG] check for ndim exceeding two in utils.check_arrays
MAINT remove some deprecated stuff
MAINT final occurrence of "Scaler"
Fix typo in linear_model documentation
Merge pull request #2960 from ethanwhite/docs-typo

Fix typo in linear_model documentation
Merge pull request #2951 from Manoj-Kumar-S/speed_sparse

[MRG] Attempt to speed up cd_fast.
staged_predict predicts classes, not probabilites
Merge pull request #2964 from abhishekkrthakur/patch-1

staged_predict predicts classes, not probabilites
TEST: fix test_forest:test_boston (#2965)
typo
Merge pull request #2971 from jyu-rmn/master

typo
DOC: the search for a split does not until one valid partition is found
add datarobot testimonial

use png -- thanks @larsmans
Merge pull request #2973 from pprett/datarobot-testimonial

add datarobot testimonial
DOC/MAINT: clarify cblas/README.txt
Merge pull request #2966 from maheshakya/feature_selector

[MRG] Added _LearntSelectorMixin in BaseGradientBoosting
DOC clarify Imputer constructor: arbitrary strings not accepted