Changelog:
- Added new livestream (premiere) itags.
- Extended custom_layout_format to support fixed width, colors and alignment.
- Merge MKV files in downloads_dir.
- Added the *AGE* token, which tells how long ago was a video published.
- Support livestreams even when youtube-dl is not available.
- Added the remember_watched config-option (disabled by default)
- Added the skip_watched config-option (disabled by default)
Signed-off-by: Algent Albrahimi <algent@protonmail.com>