DDF on SparkSQL-1.1.0
get RDD[Row] from cacheTable SchemaRDD
use RDD[Row] instead of SchemaRDD to do transformation
sample use RDD[Row]
set SparkSQL compression use HiveContext.setConf
clean up, instantiate new DDF using manager.newDDF
fix bug in CrossValidation.scala
debugging, add test to get RDD[LabeledPoint]
add test to RepHandlerSuite

to test for getting RDD[LabeledPoint]
fix MLlibIntegrationSuite

fix typo in RepresentationHandlerSuite
add log message in applyModel
debugging
debugging
[wip] debugging
add prediction for Vector
add new SparkModel
add method to instantiate new Model dynamically
convert Array[java.lang.Double] to Array[Double]
use io.spark.ddf.ml.Model.java
fix MLSupporter.newModel