Moved some mob vars to carbon:
mob/var/handcuffed -> mob/living/carbon/var/handcuffed
mob/var/legcuffed -> mob/living/carbon/var/legcuffed
As a result, I've turned some procs into pure virtual procs and moved their code into carbon.dm.
mob/proc/restrained() -> mob/living/carbon/restrained()
mob/proc/can_use_hands() -> mob/living/carbon/can_use_hands()
The hand and legcuff portion of mob/proc/u_equip() was moved into mob/living/carbon/u_equip().
The handcuffed portion of mob/proc/show_inv() was moved into mob/living/carbon/show_inv().
Fixes issue 1114.
Made parrots immune to bear traps since parrots should be flying over them anyway.
git-svn-id: http://tgstation13.googlecode.com/svn/trunk@5184 316c924e-a436-60f5-8080-3fe189b3f50e
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