API only works for terminuses

[ben-oxley]

This framework is making life much easier, thanks! However:

The API only returns entries where the to or from station is a terminus (either where the service starts or ends as appropriate.

Example of query that should work: http://darwin.hacktrain.com/api/train/CHE/to
Example of query that does work: http://darwin.hacktrain.com/api/train/BTN/to

***** OMG I hate trains.... ******
There actually weren't any trains on that line due to engineering works. T_T - Please ignore this stupid issue.