format code, add confirmation to destroy muc, implement some disconnect logic

gtk-signin.go

@@ -80,6 +80,7 @@ func dropToSignInPage(err error) {
 			conf.Password = password_entry.Text()
 			conf.Nick = nickname_entry.Text()
 			conf.Insecure = insecure_check.Active()
+			conf.JoinBookmarks = true
 
 			var b bytes.Buffer
 			e := toml.NewEncoder(&b)