TimeUtil.getMinuteDatesOnEitherSide() with interval - refactored
flattenAndPutDataInFolder with remotePathPrefix added
use flattenAndPutDataInFolder with prefix where it makes sense
convert oozieDate to DateTime inside TimeUtil method
"Creating data in folders" message moved inside HadoopUtil method
Merge remote-tracking branch 'upstream/master'

Conflicts:
	merlin/src/test/java/org/apache/falcon/regression/InstanceSummaryTest.java
imports optimized
Merge pull request #309 from rostafiychuk/master

Clean up and refactoring in @BeforeClass methods