Haxball Room List

Adds a popup that displays the haxball.com room list when clicked. The list is able to be filtered by country, passworded and full rooms and can be viewed from anywhere. A version for google chrome can be found here: https://chrome.google.com/webstore/detail/haxball-room-list/opjadepcdiciepdplcnfcoldbpbjogdn Firefox version is here: https://addons.mozilla.org/en-US/firefox/addon/haxball-room-list