message: Don't break the room settings page
  A later commit will make the URL preview settings behave like the rest of the settings page.
diff: @@ -28,6 +28,11 @@ module.exports = React.createClass({
  room: React.PropTypes.object,
  },
  + saveSettings: function() {
  + // TODO: {Travis} move toggle logic here instead of being 'live'
  + return [];
  + },
  +
  render: function() {
  const SettingsCheckbox = sdk.getComponent("elements.SettingsCheckbox");
  const roomId = this.props.room.roomId;
  @@ -43,6 +48,7 @@ module.exports = React.createClass({
  );
  }
  + // TODO: {Travis} This needs to be an explicit true/false for "room" only.
  let previewsForRoom = null;
  if (SettingsStore.canSetValue("urlPreviewsEnabled", roomId, "room")) {
  previewsForRoom = (
  