spark git commit: [SPARK-7577] [ML] [DOC] add bucketizer doc

Repository: spark Updated Branches: refs/heads/master 572b62caf - 1bd63e82f [SPARK-7577] [ML] [DOC] add bucketizer doc CC jkbradley Author: Xusen Yin yinxu...@gmail.com Closes #6451 from yinxusen/SPARK-7577 and squashes the following commits: e2dc32e [Xusen Yin] rename colums e350e49

spark git commit: [SPARK-7577] [ML] [DOC] add bucketizer doc

Repository: spark Updated Branches: refs/heads/branch-1.4 8f4a86eaa - 7bb445a38 [SPARK-7577] [ML] [DOC] add bucketizer doc CC jkbradley Author: Xusen Yin yinxu...@gmail.com Closes #6451 from yinxusen/SPARK-7577 and squashes the following commits: e2dc32e [Xusen Yin] rename colums e350e49