Initial mx-puppet-skype bridge role

Hopefully fixes an error like this (which I haven't been able to
reproduce, but..):

> [modules/xmpp/strophe.util.js] <Object.i.Strophe.log>:  Strophe: Error: Failed to construct 'RTCPeerConnection': 'matrix.DOMAIN' is not one of the supported URL schemes 'stun', 'turn' or 'turns'.

These are some new defaults that we switch to, to follow upstream
changes:

- https://github.com/jitsi/docker-jitsi-meet/commit/264df04
- 3121494d4b

Jitsi security update

We define this password in the `sip-communicator.properties`
configuration file, so this is not needed for actually running JVB.

However, it does a (useless) safety check during container startup,
and we need to make that check happy.

Co-Authored-By: Sandro <sandro.jaeckel@gmail.com>

Facebook self build

Update Caddy example in configuring-well-known to Caddy version 2

add ntpd defaults

Related to #436 (Github Pull Request).

add optional Jitsi internal auth+guests docs

improve readability

add missing jitsi auth URL conditional

jitsi-web: add more defaults

fix jitsi guests mode according to docker-jitsi-meet repo

matrix-ma1sd support

When the playbook executes on a remote host (as it usually does),
we need to explicitly say `src` is a remote file and not relative
to the playbook.