Repairs and Expands the Staff of Change

*Staff of change now has a 20% chance of turning you into a simple animal, all have been tested to make sure they're properly controllable.
*Staff of change now works on simple animals, adding on_hit doesn't double up damage on simple animals or try to inflict non-brute damage because it's hardcoded to avoid inflicting damage to animals in the generic projectile. Special guns seem to work fine on animals (like the syringe gun for example).
*Mutant races were not updating properly thanks the DNA revamp, so that's been fixed and expanded to include all current races.
*Transfering identity for MMI's in newly created robots has been disabled for animal -> robot because it doesn't work properly for them, robot -> robot also apparently NEVER worked and has likewise been disabled.