Update sklearn.js

src/sklearn.js

@@ -185,6 +185,7 @@ sklearn.ModelFactory = class {
                 constructorTable['sklearn.ensemble.gradient_boosting.MultinomialDeviance'] = function() {};
                 constructorTable['sklearn.ensemble.gradient_boosting.PriorProbabilityEstimator'] = function() {};
                 constructorTable['sklearn.ensemble.weight_boosting.AdaBoostClassifier'] = function() {};
+                constructorTable['sklearn.feature_extraction._hashing.FeatureHasher'] = function() {};
                 constructorTable['sklearn.feature_extraction.text.CountVectorizer​'] = function() {};
                 constructorTable['sklearn.feature_extraction.text.HashingVectorizer'] = function() {};
                 constructorTable['sklearn.feature_extraction.text.TfidfVectorizer​'] = function() {};
@@ -220,8 +221,12 @@ sklearn.ModelFactory = class {
                 constructorTable['sklearn.neural_network._stochastic_optimizers.SGDOptimizer'] = function() {};
                 constructorTable['sklearn.pipeline.Pipeline'] = function() {};
                 constructorTable['sklearn.pipeline.FeatureUnion'] = function() {};
+                constructorTable['sklearn.preprocessing._data.RobustScaler'] = function() {};
+                constructorTable['sklearn.preprocessing._data.StandardScaler'] = function() {};
+                constructorTable['sklearn.preprocessing._discretization.KBinsDiscretizer'] = function() {};
                 constructorTable['sklearn.preprocessing._encoders.OneHotEncoder'] = function() {};
                 constructorTable['sklearn.preprocessing._function_transformer.FunctionTransformer'] = function() {};
+                constructorTable['sklearn.preprocessing._label.LabelBinarizer'] = function() {};
                 constructorTable['sklearn.preprocessing.data.Binarizer'] = function() {};
                 constructorTable['sklearn.preprocessing.data.MaxAbsScaler'] = function() {};
                 constructorTable['sklearn.preprocessing.data.MinMaxScaler'] = function() {};