Gnome Subtitles 1.8

[Pedro Castro <mail pedrocastro org>]

Gnome Subtitles 1.8 has been released. Changes:
- Fixed issues with audio and video playback
- Fixed a crash that occurred when pressing up/down after setting the subtitle start/end
  from the video position
- Replaced the custom gstreamer wrapper with gstreamer-sharp
- Switched to GLibSharp/GtkSharp (https://github.com/GLibSharp/GtkSharp)
- Replaced Autotools with the Meson build system
- Removed the user guide which was outdated

Note to packagers:
- Autotools have been replaced with Meson
- Gtk-sharp libs (from https://github.com/GLibSharp/GtkSharp) are now built and bundled with
  Gnome Subtitles, as gtk-sharp typically available in distros (2.99.x) is not being
  maintained. Packages should no longer depend on the old gtk-sharp.
- Gstreamer-sharp (from https://gitlab.freedesktop.org/gstreamer/gstreamer) is now built and
  bundled with Gnome Subtitles, instead of the previous custom C wrapper.
- See the README.md file for a complete and updated dependency list.

Issues:
- Meson port (#106)
- Error when opening some videos at the same time as the subtitle file (#184)
- Crash at the end of video playback (#189)
- GNOME subtitle crashes when I press a key after changing time (#194)

Translations:
- Alan Mortensen (da)
- Jürgen Benvenuti (de)
- Daniel Mustieles (es)
- Asier Sarasua Garmendia (eu)
- Hugo Carvalho (pt)
- Emin Tufan Çetin (tr)
- Luming Zh (zh_CN)

Release notes are available at:
https://gnomesubtitles.org/gnome-subtitles-release-1.8

About
=====
Gnome Subtitles is a subtitle editor for the GNOME desktop. It supports the
most common text-based subtitle formats, video previewing, timings
synchronization and subtitle translation.
https://gnomesubtitles.org/about

Pedro Castro