AMBARI-3967. Config Groups: some fields missing in Select Group Hosts popup. (onechiporenko)
AMBARI-4007. In installer overriding config launches the service save confirmation popup. (ababiichuk via onechiporenko)
AMBARI-4035. Add hook support for pluggable services (dlysnichenko)
AMBARI-4036. RMF: change the way we work with not existant configs
(aonishuk)