message: fix handler for muc menu items
diff: @@ -754,6 +754,7 @@ jsxc.muc = {
  });
  var destroy = $('<a>');
  + destroy.attr('href', '#');
  destroy.text($.t('Destroy'));
  destroy.addClass('jsxc_destroy');
  destroy.hide();
  @@ -764,6 +765,7 @@ jsxc.muc = {
  win.find('.jsxc_settings ul').append($('<li>').append(destroy));
  var configure = $('<a>');
  + configure.attr('href', '#');
  configure.text($.t('Configure'));
  configure.addClass('jsxc_configure');
  configure.hide();
  @@ -792,6 +794,7 @@ jsxc.muc = {
  }
  var leave = $('<a>');
  + leave.attr('href', '#');
  leave.text($.t('Leave'));
  leave.addClass('jsxc_leave');
  leave.click(function() {
  