AMBARI-3495.NameNode HA wizard: Retry button sticks around after JN install (alexantonenko)
AMBARI-3479. During ambari-server setup-security (jaas/https) default value should be visible to users(Artem Baranchuk via odiachenko)
AMBARI-3480. On Ambari Start, re-check critical setup configs.(Artem Baranchuk via odiachenko)
AMBARI-3481. Reduce build time for Ambari - reduce the number of hadoop artifacts downloaded via maven. (Artem Baranchuk via odiachenko)