[Azoth OTRoid] Maintain a model with accounts and users for #1606.
[Azoth OTRoid] Have settings for #1606.
[Azoth OTRoid] Use username/accname from the context.
[Azoth OTRoid] reloadAll() is now a slot.
[Azoth OTRoid] FP reload scheduling.
[Azoth OTRoid] Expose FP model in settings.
[XSD] Invoke custom buttons even if selection is invalid.
[Azoth OTRoid] Added Refresh button in settings for #1606.