* add back train method but mark as deprecated * add back train method but mark as deprecated * fix scalastyle error * fix scalastyle error * update resource files * Update SparkParallelismTracker.scala * remove xgboost-tracker.properties
* add back train method but mark as deprecated * add back train method but mark as deprecated * fix scalastyle error * fix scalastyle error * update resource files * Update SparkParallelismTracker.scala * remove xgboost-tracker.properties