epg: query API rewrite
WEBUI: EPG - add direct navigation for title/channel/genre
[webui] - Use same selection list for extraStart and extraStop selection
in autorec entry editor like in recordings editor.
WEBUI: JS - status tab - use zoom icon and clicked() callback like in the epg grid
api: initialize saveptr for api_epg and api_idnode
main: move -u and -g processing outside fork, fixes 2331