paperkey.html - decode as utf-8, fixes #2150
paperkey.html - decode as utf-8, fixes #2150

hardcoded the encoding for reading it. while utf-8 is the default
encoding on many systems, it does not work everywhere.

and when it tries to decode with the ascii decoder, it fails.

edgimar/borg,raxenak/borg,edgewood/borg,edgimar/borg,edgewood/borg,edgewood/borg,raxenak/borg,raxenak/borg,edgewood/borg,RonnyPfannschmidt/borg,edgimar/borg,RonnyPfannschmidt/borg,RonnyPfannschmidt/borg,RonnyPfannschmidt/borg,edgimar/borg,RonnyPfannschmidt/borg,raxenak/borg