* Adapt netbox_device to pynetbox changes
Pynetbox API has changed, resulting in errors at the creation or
deletion of any device with the netbox_device modules. Fixes these
errors.
rebase
* Refactor netbox_device
Better error handling
Split the return values to `device` and `msg`, containing the created
device (if any), and the message to get more info about what has been
achieved (or the error if any)