That's not the add-on.xml created by our installer, since our installer DOES NOT put a <Layer> number.
That's seems to be a problem most likely caused by the Lorby Addon Organizer, which rewrites add-on.xml, adding a Layer command, which allows to rearrange add-on. If you remove it, and run our installer again, you'll see the Layer command is not there, and the Name is set correctly.