* forbid messages with too many special characters (#517).
* update moderation bot to v0.4.0.
* refactoring localization segments to reuse existing one in multiple
context.
* npm run doc:translate
* Prosody mod_muc_peertubelivechat_roles module
* Fix ConverseJS to disable the message field when room is unmoderated
and user is visitor
* Mute/voice anonymous users when changing room configuration.
* Display a specific message to muted anonymous users.
* Default value for mute_anonymous in channel options.
* Feature documentation
* the code handling `separators` was buggy, so i simplified to use only
one separator
* was not practical for bot quotes (can't edit), so replaced by a
textarea
