* Use the comparison operator that Python3 likes.
* Add SUPPORT_DEVICE_TYPES category, and add Host Service to it.
* Add webapp UI for attaching a support device.
* Make the OLED screen aware of the support device type.
* Tweak test to make it clear that this is experimental functionality.
* Tweak device type names
* Improve the device type selection UI
* Extend the image_files data structure with human readable device name, instead of having complex for loops in the jinja2 template.
* Leverage device type constants in the OLED monitor script
* Fix typo
* Generate the list of valid network devices that can be attached programmatically
* Fix typo
