Added small platform for making experiments in the add-on
New welcome tip for rating window + experimenting with tip's style
Mini donuts on SERPs and social networks.
fixes #44 Change WS's background gradient
updated version to 1.4.9 / 20130208
fixed #79 Some FBL events don't reach the GA servers
Cleaned orphaned files and updated version number
Merge branch 'master' into manifest-v1