using stringutils from apache.commons.lang
createDataWithinDatesAndPrefix replaced with getMinuteDatesOnEitherSide and flattenAndPutDataInFolder
use flattenAndPutDataInFolder instead of createPeriodicDataset
provide using getMinuteDatesOnEitherSide from TimeUtils
hardcoded timeout avoided in waitTillInstanceReachState and waitForBundleToReachState, some javadocs and refactoring changes
hardcoded timeout avoided in waitTillInstancesAreCreated
refactoring and documentation
refactoring, javadocs
waitTillInstancesAreCreated with optional timeout parameter added
Merge pull request #316 from pisaychuk/master

Refactoring
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
handle single file as inputPath
Merge remote-tracking branch 'upstream/master'

Conflicts:
	merlin/src/test/java/org/apache/falcon/regression/ProcessInstanceColoMixedTest.java
Merge pull request #314 from rostafiychuk/master

similar methods deleted
time of test reduced from 24 to 11 minutes
extra semicolon removed
Merge pull request #317 from samarthgupta437/samarth

 removing cdh4 profile, making package groupID if as org.apache.falcon.regression
Merge pull request #318 from pisaychuk/master

reduced time of test