Refactored JSON/N3 districts list.
Refactored JSON/N3 districts list.

This one I did without tests because IIRC it's an undocumented API.  Looks OK
in manual testing though.

ferranti/watchdog,aaronsw/watchdog,MjAbuz/watchdog,ferranti/watchdog,MjAbuz/watchdog,MjAbuz/watchdog,aaronsw/watchdog,ferranti/watchdog,aaronsw/watchdog,MjAbuz/watchdog,ferranti/watchdog