Unfuddle integration

The following changeset introduces basic unfuddle integration for the Toggl Button extension. Clicking on the "Start timer" will start a toggl timer with a **"#NO: TICKET"** style description.  

Please review and let me know what you think. 
Thanks.

![chrome-toggl-unfuddled](https://f.cloud.github.com/assets/23576/936638/6ed481bc-00bc-11e3-88e7-6f5cf5bec054.png)