spark git commit: [SPARK-12310][SPARKR] Add write.json and write.parquet for SparkR

Repository: spark Updated Branches: refs/heads/branch-1.6 a2d584ed9 -> ac0e2ea7c [SPARK-12310][SPARKR] Add write.json and write.parquet for SparkR Add ```write.json``` and ```write.parquet``` for SparkR, and deprecated ```saveAsParquetFile```. Author: Yanbo Liang

spark git commit: [SPARK-12310][SPARKR] Add write.json and write.parquet for SparkR

Repository: spark Updated Branches: refs/heads/master 2eb5af5f0 -> 22f6cd86f [SPARK-12310][SPARKR] Add write.json and write.parquet for SparkR Add ```write.json``` and ```write.parquet``` for SparkR, and deprecated ```saveAsParquetFile```. Author: Yanbo Liang Closes