- ifdown: rebuild hierarchy from lower and masterdev to stop
  requested interfaces in their correct order (bnc#883976)
- config: added <use-nanny>true</use-nanny> switch
- client: log exec commands and exit codes as debug
- client: initial merge of nanny ifup and ifdown
- nanny: initial merge of nanny fork changes
- rpm: removed obsolete pkgconfig(systemd), use unitdir
- library: fixed versioning of internal wicked lib