[x] Mark Event Cards in the Database (changed in database already)
[x] Make acquiring duplicates of Event Cards expensive
[x] When bountying
[x] When trading
[x] Add Rule to clarify that using others to potentially get it cheaper is explicitly allowed since the trading fee covers this, but trading is encouraged, as both sides need to agree to the deal
[x] Replace stale kraken calls for Helix equivalents
And Misc Changes.