Add PEP to xmpp, to support OMEMO

src/freedombone

@@ -7057,6 +7057,7 @@ function install_xmpp {
 		echo '  "carbons"; -- Message carbons' >> /etc/prosody/conf.avail/xmpp.cfg.lua
 		echo '  "smacks"; -- Stream management' >> /etc/prosody/conf.avail/xmpp.cfg.lua
 		echo '  "smacks_offline"; -- Stream management' >> /etc/prosody/conf.avail/xmpp.cfg.lua
+		echo '  "pep"; -- Personal Eventing Protocol (to support OMEMO)' >> /etc/prosody/conf.avail/xmpp.cfg.lua
 		echo '}' >> /etc/prosody/conf.avail/xmpp.cfg.lua
 		echo '' >> /etc/prosody/conf.avail/xmpp.cfg.lua
 		echo 'c2s_require_encryption = true' >> /etc/prosody/conf.avail/xmpp.cfg.lua