IMHO it is impossible to create a single static json file for DAD that works with UI5 and with earlier UI versions (just try to back-port the DAD V1.1 (available soon) static json file for UI5 to UI4 ...).
The idea behind a <staticJson2> variable is to be able to specify different static json files for UI5 and for earlier UI (<eventList2> ...).
If there is a <staticJson2> value in the device definition file and we are running on UI5 (or on a later version ...), LuaUPnP should use the <staticJson2> value to create the device, otherwise it should use the <staticJson> value.
Benefits:
- No need for the user to decide which version of the static json file to use.
- Upgrading/Downgrading the UI wouldn't impact the plugin, the static json file would automatically be 'switched' to the right version.
