check

CmdStatCheck is a replacement for the previous CmdDiceCheck command.
Currently in the process of being extended as I change the underlying
check system - want it support a much wider range of difficulties and
antagonists and modifiers. The current check will remain in place
while that occurs, adding the new system via switches. Once complete,
the old way will be removed. New system will always be checks by name,
rather than by stat/skill combinations.