spark git commit: [SPARK-16579][SPARKR] add install.spark function

Repository: spark Updated Branches: refs/heads/branch-2.0 977fbbfca -> d3a30d2f0 [SPARK-16579][SPARKR] add install.spark function Add an install_spark function to the SparkR package. User can run `install_spark()` to install Spark to a local directory within R. Updates: Several changes

spark git commit: [SPARK-16579][SPARKR] add install.spark function

Repository: spark Updated Branches: refs/heads/master d4a912243 -> 214ba66a0 [SPARK-16579][SPARKR] add install.spark function ## What changes were proposed in this pull request? Add an install_spark function to the SparkR package. User can run `install_spark()` to install Spark to a local