mod_vcard_muc: Add an alternative method of signaling avatar change When the avatar has been changed, a signal is sent that the room configuration has changed. Clients then do a disco#info query to find the SHA-1 of the new avatar. They can then fetch it as before, or not if they have it cached already. This is meant to be less disruptive than signaling via presence, which caused problems for some clients. If clients transition to the new method, the old one can eventually be removed. The namespace is made up while waiting for standardization. Otherwise it is very close to what's described in https://xmpp.org/extensions/inbox/muc-avatars.html

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summary: S2S connection override
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# Introduction

This module is similar to [mod\_srvinjection] but less of an hack.

# Configuration

``` lua
-- In the global section

modules_enabled = {
    --- your other modules
    "s2soutinjection";
}

s2s_connect_overrides = {
    -- This one will use the default port, 5269
    ["example.com"] = "xmpp.server.local";

    -- To set a different port:
    ["another.example"] = { "non-standard-port.example", 9999 };
}
```

# Compatibility

Requires 0.9.x or later.