Using functions instead of values for verification

[BeastyBlacksmith]

I think it would be strictly more versatile if you could pass a function to the Question object and then it checks whether it returns true or false.

For example with that in the define x=10 question you could check

function (mod::Module = Main)
	isdefined(mod, :x) && x == 10
end

So you would pass only when x=10 and not when y=10.