Moved YouTube Center to the page sandbox and set it to use the same method as Safari. Fixed an issue with the Chrome extension where it couldn't check for the latest version.
Fixed a bug with the Safari extension, which caused cross origin xhr to not work.
Re-added ClipConverter.cc to the mp3 services.
Fix for the annotations' position and size for the HTML5 player when resizing the player.
Merge branch 'master' of https://github.com/YePpHa/YouTubeCenter