Samarth

changes in regression to take care of https://issues.apache.org/jira/browse/FALCON-280

pls take look at latest commits since i have remove the changes made in initial commits
i think for replication mode is more dependent on what is config is in  merlin.properties 
If two servers point to same falcon server with diff hdfs embedded mode will work , if they point to different falcon server test will be running in distributed mode.