Allow for two of the same hero class

[kermitfrog]

For variety sake, it would be nice if you could take two of the same class (two medics or hunters, for example). Given the current hero list, its hard not to have similar parties over and over again.

[Foxman]

That would be cool actually! Could make for some really fun games! And probably won't be too hard to prog that.

[Foxman]

You can actually have a game with 4 automaton. It would be awesome if we could have multiple of the same guard. Can we make that happen?

[hammastahna]

Commander would not really work in multiples since it has abilities that rely on it acting last.