Correct default capabilities to reflect current support
Correct default capabilities to reflect current support

RibbitFROG/libblkmaker,bitcoin/libblkmaker,Geremia/libblkmaker,arnuschky/primecoin-libblkmaker,Geremia/libblkmaker,bitcoin/libblkmaker,RibbitFROG/libblkmaker,arnuschky/primecoin-libblkmaker