[mythtv] Release 1.9.22

- demuxer: Remove padding checks for reserved bit of table
- demuxer: Increase size of table to 2K
- Update codec id after stream parsing
- Merge channels with same source ID
- Start channel number in group with 1
- Fix race condition when stopping demux
- Load EIT categories from resource file
- New props for program info: m_serie
- Create folder for serie only
- avinfo: Limit the size of analyzed data
- Add new setting 'group_recordings'
- Fix default value for setting 'livetv_conflict_strategy'
- Update comment in strings.po
- Fix identifier for stream dvbsub
- Check EDL length
- Fix some french translations
- New translations for future EDL dialogs
- Add setting 'enable_edl'
- New classes to handle GUI dialog 'DialogYesNo'
- Open dialog to enable/disable EDL for a show
- Fix seek time: desired PTS should be signed