Ability to define new cards from the Web

[rspeer]

One way that Dominiate can really shine is allowing people to playtest new cards they propose (for example, on the Variants forum of forum.dominionstrategy.com).

People can run arbitrary CoffeeScript code on top of Dominiate already; that's almost everything they need to define new cards. We should have a system that supports this -- such as an optional box to define new cards in and get them added to the tableau. Probably depends on #21, for sanity.