Updates debian dependencies. (#620)
Updates debian dependencies. (#620)

* Updates debian dependencies.

required for Ubuntu 18.10, Ubuntu 19.04, and Ubuntu 19.10 already

* Updates debian dependencies.

required for Debian 10 (Buster), Ubuntu 18.10, Ubuntu 19.04, and Ubuntu 19.10 already

* Debian: Depend on FFmpeg and AppIndicator optionally.

- AppIndicator is enabled optionally via Menu » Tools » Options » General » Tray implementation.
- FFmpeg is used for video and the audio codec AMR-WB (therefore, libavcodec-extra preferred).
Jitsi Desktop runs without those. Furthermore, Jitsi changed to Java 8 as minimum, which is reflected here now.

* Debian: Depend on FFmpeg and AppIndicator optionally.

- AppIndicator is enabled optionally via Menu » Tools » Options » General » Tray implementation.
- FFmpeg is used for video and the audio codec AMR-WB (therefore, libavcodec-extra preferred).
- jitsi-archive-keyring was used so updates do not break while transitioning to a newer Debian repository.
Jitsi Desktop runs without those. Furthermore, Jitsi changed to Java 8 as minimum, which is reflected here now.

* Update control.tmpl

jitsi/jitsi,jitsi/jitsi,damencho/jitsi,jitsi/jitsi,jitsi/jitsi,damencho/jitsi,damencho/jitsi,damencho/jitsi,damencho/jitsi,jitsi/jitsi