ARGUS-142:Fixed no audit info shown for user role changes

Signed-off-by: sneethiraj <sneethir@apache.org>
ARGUS-109:Fixed typo in license message

Signed-off-by: sneethiraj <sneethir@apache.org>
ARGUS-143: HBase plug-in updated to authorize bulk-load operations.
ARGUS-138: Fixed the bug that caused code to let some of the users with userid below MIN_UNIX_USER_ID_TO_SYNC

Signed-off-by: Madhan Neethiraj <madhan@apache.org>
Merge remote-tracking branch 'origin/master' into argus2ranger