Remove 'Johannes Löthberg' from copyright info
Remove 'Johannes Löthberg' from copyright info

Only temporary, the readthedocs build was failing because of the
non-ASCII 'ö'. Needs fixing.

guyfawcus/ArchMap,guyfawcus/ArchMap,guyfawcus/ArchMap,maelstrom59/ArchMap,maelstrom59/ArchMap