Merge pull request #809 from shivaram/sgd-cleanup

docs/_layouts/global.html

docs/_plugins/copy_api_dirs.rb

...scala/spark/mllib/classification/LogisticRegression.scala

mllib/src/main/scala/spark/mllib/classification/SVM.scala

mllib/src/main/scala/spark/mllib/optimization/Gradient.scala

...main/scala/spark/mllib/optimization/GradientDescent.scala

mllib/src/main/scala/spark/mllib/optimization/Updater.scala

...spark/mllib/recommendation/MatrixFactorizationModel.scala

...a/spark/mllib/regression/GeneralizedLinearAlgorithm.scala

mllib/src/main/scala/spark/mllib/regression/Lasso.scala

...c/main/scala/spark/mllib/regression/RidgeRegression.scala

...src/main/scala/spark/mllib/util/KMeansDataGenerator.scala

.../src/main/scala/spark/mllib/util/LassoDataGenerator.scala

...la/spark/mllib/util/LogisticRegressionDataGenerator.scala

mllib/src/main/scala/spark/mllib/util/MLUtils.scala

...scala/spark/mllib/util/RidgeRegressionDataGenerator.scala

mllib/src/main/scala/spark/mllib/util/SVMDataGenerator.scala

...src/test/java/spark/mllib/clustering/JavaKMeansSuite.java

...rc/test/java/spark/mllib/recommendation/JavaALSSuite.java