spark git commit: [SPARK-18823][SPARKR] add support for assigning to column

Repository: spark Updated Branches: refs/heads/master ec9493b44 -> f27e02476 [SPARK-18823][SPARKR] add support for assigning to column ## What changes were proposed in this pull request? Support for ``` df[[myname]] <- 1 df[[2]] <- df$eruptions ``` ## How was this patch tested? manual tests

spark git commit: [SPARK-18823][SPARKR] add support for assigning to column

Repository: spark Updated Branches: refs/heads/branch-2.1 570e5e11d -> 9c04e427d [SPARK-18823][SPARKR] add support for assigning to column ## What changes were proposed in this pull request? Support for ``` df[[myname]] <- 1 df[[2]] <- df$eruptions ``` ## How was this patch tested? manual t