message: Integrate InAppMessage to app (mac)
diff: @@ -1860,7 +1860,11 @@ void on_display_message(const char *title,
  const char *button,
  const char *url)
  {
  + InAppMessage *message = [[InAppMessage alloc] initWithTitle:[NSString stringWithUTF8String:title]
  + subTitle:[NSString stringWithUTF8String:text]
  + buttonTitle:[NSString stringWithUTF8String:button]
  + urlAction:[NSString stringWithUTF8String:url]];
  + [[NSNotificationCenter defaultCenter] postNotificationOnMainThread:kStartDisplayInAppMessage object:message];
  }
  -
  @end
  