domain name variable for mumble

src/freedombone-app-mumble

@@ -43,6 +43,7 @@ MUMBLE_DATABASE="mumble-server.sqlite"
 MUMBLE_CONFIG_FILE="mumble-server.ini"
 
 mumble_variables=(MY_USERNAME
+                  DEFAULT_DOMAIN_NAME
                   MUMBLE_PORT
                   ONION_ONLY
                   ADMIN_USERNAME)