That is the cocoonjs plugin from ludei. It is extremly deprecated. You shouldn't use that in my opinion. I was talking about exporting cordova -> crosswalk -> intel sdk.
App ID is a number you can find next to your game service bame in google developer console. The cocoonjs plugin would need that too. I think it was in the plugin settings.
I cant help you any further. I haven't been using cocoonjs for over six month now. There are still some developers and believers who might be able to help you but I guess the number is decreasing.