Web UI: add interface to zones. Refs #2705 #2716
Templates: expand custom zones. Refs #2705
Traffic shaping: avoid warnings
Web UI: add Zone module. Refs #2705
Web UI: beautify rules pages. Refs #2783
Web UI: update translations. Refs #2783
Web UI: handle mobile devices. Refs #2783
Web UI: fix inline creation of host-group. Refs #2705