Update Shuttles root screen for iOS 7. #32
Update Shuttles for iOS 7. #32

- Many ugly hacks.
- Shuttles is another module that needs to be rewritten from the ground up.
Make Shuttle Routes screen show a loading message. #32

If the server is slow in responding, the app used to be stuck saying “No Shuttle Routes” with no indication that it was actually waiting for data from the server and that shuttles might be running after all.