Updated default spark version and hadoop version to 2.0.0 and yarn
Updated default spark version and hadoop version to 2.0.0 and yarn

inreachventures/spark-ec2,disconn3ct/spark-ec2,Gaojiaqi/spark-ec2,SiGe/spark-ec2,inreachventures/spark-ec2,Gaojiaqi/spark-ec2,hiconversion/spark-ec2,romanini/spark-ec2,Gaojiaqi/spark-ec2,SiGe/spark-ec2,SiGe/spark-ec2,romanini/spark-ec2,disconn3ct/spark-ec2,romanini/spark-ec2,disconn3ct/spark-ec2,hiconversion/spark-ec2,hiconversion/spark-ec2