AMBARI-5038. Fix issues appeared after upgrading to 1.5.0. (mpapirkovskyy)
AMBARI-5041. Falcon does not support _HOST substitution in principal names. (jaimin)
AMBARI_5033. Configs are not being pushed to Falcon Client hostComponent (aonishuk)
AMBARI-5043. oozie-site.xml defaults need to be updated for 2.1 stack. (yusaku)