api epg: fix memory leak
epggrab: fix memory leaks on shutdown for opentv/pyepg/xmltv
main: show more fail info in log for -u and -g
scanfile: fix DVB-T bandwidth parsing for dvbv5 format, fixes #2336
WEBUI JS: Replace the zoom icon with the small blue triangle
WEBUI JS: Some other tweaks to the epg broadcast info dialog styling