Add test for PatchExtractor (float value for max_patches)
Fix float value support for max_patches in PatchExtractor
COSMIT refactor roc_curve and precision_recall_curve
FIX bug where hinge_loss(..., neg_label=1) produced incorrect results
MAINT: refactored metrics.auc to use np.trapz
Merge pull request #1880 from NicolasTr/patch_extractor_float_max_patches

Support float values for max_patches in PatchExtractor.transform
Draft SelectBetween, SelectByName and SelectIndices
Reimplement SelectorMixin using SelectBetween
Create FeatureSelectionMixin for shared [inverse_]transform code
FIX add missing default attr value
First attempt at univariate feature selection with SelectBetween
Limit number of features in SelectBetween
Rename SelectBetween to SelectByScore
Clean nans when limiting number of features
Fixes to nan support in SelectByScore
Use SelectByScore in CountVectorizer
Fix small regression in _limit_support