Richard van der Hoff 4fec5e57be Default device_display_name to null
It turns out that it's more useful to return a null device display name (and
let clients decide how to handle it: eg, falling back to device_id) than using
a constant string like "unknown device".
2016-08-03 11:53:00 +01:00
..
2016-07-18 16:39:44 +01:00
2016-07-19 11:44:05 +01:00