generate less unique entities
do not generate unique bundle in submitBundle()
generateUniqueBundle added where it was missed
Merge remote-tracking branch 'upstream/master' into uniquebundle

Conflicts:
	merlin-core/src/main/java/org/apache/falcon/regression/core/util/Util.java
Merge pull request #304 from rostafiychuk/uniquebundle

less unique names after generateUniqueBundle()
enabled, documented, refactored
extracting createUrl method
moving createUrl method to IEntityManager
removing url+= from ProcessEntityImpl
use createUrl method
use getEntityType method
use createUrl method
use getEntityType method
single implementation of listEntities(Util.URLS url, String user) function
single implementation of submitEntity(String url, String data, String user)
fixing minor bug
single implementation of submitEntity(Util.URLS url, String data, String user)
unifying implementation of schedule(String url, String data, String user)
unifying submitAndSchedule(String url, String data, String user)
unifying implementation of submitAndSchedule(Util.URLS url, String data, String user)