Update DAOP file
MAM Prefs will be split into a new XEP
https://xmpp.org/extensions/inbox/xep-mam-prefs.html
Update once it gets a XEP Number
MAM Prefs will be split into a new XEP
https://xmpp.org/extensions/inbox/xep-mam-prefs.html
Update once it gets a XEP Number