Change to UUIDs instead of Playernames(except in Spells)

Signed-off-by: Andre Schweiger <andre.spiele@yahoo.de>
Fix missing UUID reference

Signed-off-by: Andre Schweiger <andre.spiele@yahoo.de>
Small UUID fix

Signed-off-by: Andre Schweiger <andre.spiele@yahoo.de>
Add unfinished converter

Signed-off-by: Andre Schweiger <andre.spiele@yahoo.de>