* adding a 'rejuvinate' function to organs that fixes all types of damage

* adding a 'restore_all_organs' function to living creatures
* adding a 'restore_blood_loss' function to humans
* fixing changeling stasis power to heal organ and blood damage
* fixing adming rejuvinate verb to fix organ and blood damage

code/modules/organs/organ_external.dm

@@ -181,8 +181,31 @@
 
 	var/result = update_icon()
 	return result
-
-
+	
+/*
+This function completely restores a damaged organ to perfect condition.
+*/
+/datum/organ/external/proc/rejuvenate()
+	damage_state = "00"
+	status = 0
+	perma_injury = 0
+	brute_dam = 0
+	burn_dam = 0
+	
+	// handle internal organs
+	for(var/datum/organ/internal/current_organ in internal_organs)
+		current_organ.rejuvenate()
+	
+	// remove embedded objects and drop them on the floor
+	for(var/obj/implanted_object in implants)
+		if(!istype(implanted_object,/obj/item/weapon/implant))	// We don't want to remove REAL implants. Just shrapnel etc.
+			implanted_object.loc = owner.loc
+			implants -= implanted_object
+			
+	owner.updatehealth()
+	update_icon()
+	
+	
 /datum/organ/external/proc/createwound(var/type = CUT, var/damage)
 	if(damage == 0) return
 

code/modules/organs/organ_internal.dm

@@ -11,6 +11,9 @@
 	var/min_broken_damage = 30
 	var/parent_organ = "chest"
 
+/datum/organ/internal/proc/rejuvenate()
+	damage=0
+	
 /datum/organ/internal/proc/is_bruised()
 	return damage >= min_bruised_damage