reaktor2 should handle the following commands:

- `add-location cbase 53.562300 9.985700`
- `list-locations`
- `delete-location cbase`
- `18@p LOCATION [RADIUS]` (shows restaurants at location with a given radius in meters (default: 500))

`graph.r` should display the locations on the map.

it should be implemented using the cyberlocker

[Prototype](http://p.r/0vf5h0j)