Fork Chatty

This is fork of Chatty with some improvements and without any breaking changes of original version.

List of added features.

• Load recent messages of channel.
• Mention user by middle click.
• Shortcut to Livestreamer window through context menu.
• Title of youtube video in url dialog.
• See images in Chatty.
  • Left click — close window.
  • Middle click — copy image in clipboard.
  • Right click — save image on hard disk.