using stringutils from apache.commons.lang
Merge branch 'master' into samarth

Conflicts:
	merlin-core/src/main/java/org/apache/falcon/regression/core/interfaces/IEntityManagerHelper.java
merging with master
removing cdh4 profile, making package groupID if as org.apache.falcon.regression
Merge pull request #317 from samarthgupta437/samarth

 removing cdh4 profile, making package groupID if as org.apache.falcon.regression