The current poltergeist http api immediately returns
and does not wait for async work in the handler to finish. This
mostly occurs when a public asap key needs to be fetched due
to a cache miss. The fix implements the strategy described at
https://prosody.im/doc/developers/http.html

This should allow us to have a consistent convention and assist
with client translation of status strings.

When combined with mod_muc_poltergeist mod_muc_call allows
for enabling call features using a proper ext_events.lib.lua
implementation. By default when the module is configured only
stub implementations are used for ext_events.lib.lua as these
are unique between deployments.

* add a prosody module to insert identity information (when available) into
presence

prosody will check for jitsi_meet_context_user and
jitsi_meet_context_group in the session and, if they are present, insert
them into presence (we do this in prosody so they cannot be spoofed).

* remove unused 'presence' variable

* refactor to modify presence message in place

* make object member access consistent

* make the group information optional

This was broken with commit c1fb1a7def, which splits the result in order to print the error reason and in case of error was not returning the error and the message to prosody internals.

Adds some debug messages when token verification fails for some reason.

fixes handling of keyserver ASAP validation of tokens
wraps room and room-size APIs

set up async context for all poltergeist calls
utils lib now has async wrapper for event handlers

If we do not reuse previous presences we lose avatar and name and people joining after the poltergeist creation will not be updated with those values.

Adds http method to remove poltergeists. Adds configurable timeout after which poltergeists automatically are removed from the room.

Thanks to Matthew Wild for the initial help of creating these.
Module with REST interface to create poltergeist participants and change their statuses.
When user with same id joins the room, the poltergeist is removed.  We also make sure that that user uses same username when authenticates. This way we are sure that user will join the room with the same nick as the poltergeist.

This is a hook to override the username that will be used when authenticating token users (which are using anonymous login with auto-generated username).

* added checks for audience and issuer values
default audience and issuer checks to validate only appId
added missing documentation lines from the previous PR for context_user and context_group session values

* support for accepting any audience
option set to accept any audience by default

stick user and group from token context into session if available

Allows '*' in jwt to allow connecting to any room.

Room name verification crashes when we have a configured anonymousdomain as it doesn't have any token extracted data. It is safe to skip this check as room creation is verified by jicofo and we have the option restrict_room_creation to admin users.
Removes obsolete print when updating jitsi-meet-tokens.

Returns forbidden error message if module is enabled and the user sending a dialout rayo command is not authenticated through jwt token or is not allowed to enter the room name from the rayo iq.

Checks for a parameter named subdomain and if it exists, adds it to the roomname as used in multiple domain mode ([subdomain]roomname@conference.example.com).
Moves muc_size module to per-host module and adds token verification.

Adds option to enable/disable domain checking, disabled by default. Domain verification for multiple domains depends on new option muc_mapper_domain_base.

This option is useless, as if we do not need to verify room name, we just disable the mod_token_verification module.

Adds and the default conference. part where the muc module live in default deployments.

This reverts commit e2e04e3f16.

Queries room for their size or room particiapnt's information. Depends on luarocks net-url module.

The script looks for nginx, apache2 or jetty configuration and edits the first one found. Nginx and apache2 will be reloaded, while jvb will be stopped, configured and started again.