rspeer/dominiate — pull request #72 by bilts (2012-02-14 00:40:43+00:00)
Title: Mark Trader as a reaction card

I was trying to implement a Trader/Cache strategy based on [this forum post](http://forum.dominionstrategy.com/index.php?topic=1740.0). I noticed reactReplacingGain was never being called for Trader. Tracking it down, it turns out Trader wasn't marked as a reaction card.