* new setting
* new configuration screen for Peertube admins
* include the mod_firewall module
* load mod_firewall if enabled
* sys admin can disable the firewall config editing by creating a
special file on the disk
* user documentation
Note: websocket s2s is not working yet, still WIP.
New Features
* Chat Federation:
* You can now connect to a remote chat with your local account.
* This remote connection is done using a custom implementation of [XEP-0468: WebSocket S2S](https://xmpp.org/extensions/xep-0468.html), using some specific discovering method (so that it will work without any DNS configuration).
Minor changes and fixes
* Possibility to debug Prosody in development environments.
* Using process.spawn instead of process.exec to launch Prosody (safer, and more optimal).
* Prosody AppImage: fix path mapping: we only map necessary /etc/ subdir, so that the AppImage can access to /etc/resolv.conf, /etc/hosts, ...
* Prosody AppImage: hidden debug mode to disable lua-unbound, that seems broken in some docker dev environments.
* using a stable version (4.2.2)
* minimum Peertube version is now 4.2.0
* removing some type customizations
Related to issue #122.
Note: there are still some quirks. See: https://github.com/Chocobozzz/PeerTube/issues/5446
From now on, webchat can only be activated for local videos.
It will never be displayed on remote videos.
This is because an incompatibility with a new feature (webchat per channel).
Moreover this feature was very limited: the webchat was not shared with the remote instance (this will probably be achieved in a future release).
* generated password on an api call
* use this password to authenticate on prosody
* using helper getAuthUser when available, else fallback to custom code
* init some shared functions (videoHasWebchat, parseConfigUUIDs)
* api/room: checking that video has live enabled
* fix promise handling in initChat function
* removing some 'use strict' that are no more necessary in typescript
