Better information in nearest list

This shows transport types as the "sub" text in each entry of the nearest list. As returned from the API, which oddly uses "U" for tunnelbanan.

Also, distances shown to the nearest meter.

Screenshot:
![device-info](https://f.cloud.github.com/assets/227091/2285605/11b697da-9fd7-11e3-8c07-a7cf435836a8.png)