Add experimental hats support

xmpp-mucuser.go

@@ -19,6 +19,7 @@ type MucUserItem struct {
 	Affiliation string `xml:"affiliation,attr,omitempty"` // TODO: Use enum
 	Role        string `xml:"role,attr,omitempty"`        // TODO: Use enum
 	JID         string `xml:"jid,attr,omitempty"`
+	Reason string `xml:"reason,omitempty"`
 }
 
 func init() {