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

Developer Utilities/Tests
=========================

This directory exists for reasons of sanity checking.  If you wish
to run the tests, set up Prosody as you normally would, and install the LDAP
modules as normal as well.  Set up OpenLDAP using the configuration directory
found in this directory (slapd.conf), and run the following command to import
the test definitions into the LDAP server:

    ldapadd -x -w prosody -D 'cn=Manager,dc=example,dc=com' -f posix-users.ldif

Then just run prove (you will need perl and AnyEvent::XMPP installed):

    prove t