Upgrade to FontAwesome 4.2.0

- Removes the local cached copy and just relies on the CDN
- Updates the relevant classes to point to new stuff
- Changes the Uber widget icon from a `time` to a `taxi`
- Changes the B-Cycle icon to use FontAwesome
- Corrects faulty Fucks Given meter

![screen shot 2014-10-12 at 10 46 26 pm](https://cloud.githubusercontent.com/assets/80459/4608857/ac4cd4be-528b-11e4-9adf-0e5b7a4c9080.png)
![screen shot 2014-10-12 at 10 46 49 pm](https://cloud.githubusercontent.com/assets/80459/4608858/ac5f24e8-528b-11e4-8489-f3cb4348b8fc.png)
![screen shot 2014-10-12 at 10 47 12 pm](https://cloud.githubusercontent.com/assets/80459/4608859/ac601196-528b-11e4-80ba-dda3a446521d.png)