spark git commit: [SPARK-20669][ML] LoR.family and LDA.optimizer should be case insensitive

Repository: spark Updated Branches: refs/heads/branch-2.2 cb64064dc -> 708f68c8a [SPARK-20669][ML] LoR.family and LDA.optimizer should be case insensitive ## What changes were proposed in this pull request? make param `family` in LoR and `optimizer` in LDA case insensitive ## How was this pat

spark git commit: [SPARK-20669][ML] LoR.family and LDA.optimizer should be case insensitive

Repository: spark Updated Branches: refs/heads/master b0888d1ac -> 9970aa096 [SPARK-20669][ML] LoR.family and LDA.optimizer should be case insensitive ## What changes were proposed in this pull request? make param `family` in LoR and `optimizer` in LDA case insensitive ## How was this patch t