Option to disable health scaling

[worMatty]

More and more, mappers are doing their own balancing for arena fights using logic, conditions and now VScript, and auto health scaling for activators is getting in the way. It also interferes with trigger_hurts designed to kill the activator which have too low damage. As far as I can see, there's no way to turn this off in DRN, so I suggest disabling it when the cvar is set to 0. It may be best to make that the default value.