Mob life fix, firedoors

This commit does the following;
 - Repairs mob breathing by adding a new ticker process, mob_master, as
   air_master is an unreliable ticker with it's customizable speed
 - Restore firedoor attack_hand access
  - You can now open and close firedoors by using no item, provided you
    have access to them and they aren't locked.

code/modules/mob/living/carbon/alien/humanoid/life.dm

@@ -20,7 +20,7 @@
 
 		//First, resolve location and get a breath
 
-		if(air_master.current_cycle%4==2)
+		if(mob_master.current_cycle%4==2)
 			//Only try to take a breath every 4 seconds, unless suffocating
 			spawn(0) breathe()
 

code/modules/mob/living/carbon/alien/larva/life.dm

@@ -17,7 +17,7 @@
 			amount_grown++
 
 		//First, resolve location and get a breath
-		if(air_master.current_cycle%4==2)
+		if(mob_master.current_cycle%4==2)
 			//Only try to take a breath every 4 seconds, unless suffocating
 			spawn(0) breathe()
 		else //Still give containing object the chance to interact

code/modules/mob/living/carbon/alien/life.dm

@@ -116,7 +116,7 @@
 					stomach_contents.Remove(M)
 					qdel(M)
 					continue
-				if(air_master.current_cycle%3==1)
+				if(mob_master.current_cycle%3==1)
 					if(!(M.status_flags & GODMODE))
 						M.adjustBruteLoss(5)
 					nutrition += 10

code/modules/mob/living/carbon/human/life.dm

@@ -74,7 +74,7 @@ var/global/list/brutefireloss_overlays = list("1" = image("icon" = 'icons/mob/sc
 
 	//No need to update all of these procs if the guy is dead.
 	if(stat != DEAD && !in_stasis)
-		if(air_master.current_cycle%4==2 || failed_last_breath) 	//First, resolve location and get a breath
+		if(mob_master.current_cycle%4==2 || failed_last_breath) 	//First, resolve location and get a breath
 			breathe() 				//Only try to take a breath every 4 ticks, unless suffocating
 
 		else //Still give containing object the chance to interact
@@ -1412,7 +1412,7 @@ var/global/list/brutefireloss_overlays = list("1" = image("icon" = 'icons/mob/sc
 						stomach_contents.Remove(M)
 						del(M)
 						continue
-					if(air_master.current_cycle%3==1)
+					if(mob_master.current_cycle%3==1)
 						if(!(M.status_flags & GODMODE))
 							M.adjustBruteLoss(5)
 						nutrition += 10

code/modules/mob/living/carbon/monkey/life.dm

@@ -25,7 +25,7 @@
 	if (stat != DEAD)
 		if(!istype(src,/mob/living/carbon/monkey/diona)) //still breathing
 			//First, resolve location and get a breath
-			if(air_master.current_cycle%4==2)
+			if(mob_master.current_cycle%4==2)
 				//Only try to take a breath every 4 seconds, unless suffocating
 				breathe()
 			else //Still give containing object the chance to interact

code/modules/mob/living/carbon/species.dm

@@ -221,6 +221,7 @@
 		if(H.reagents)
 			H.reagents.add_reagent("plasma", Clamp(ratio, MIN_PLASMA_DAMAGE, MAX_PLASMA_DAMAGE))
 		H.toxins_alert = max(H.toxins_alert, 1)
+
 	else if(O2_pp > vox_oxygen_max && name == "Vox") //Oxygen is toxic to vox.
 		var/ratio = (breath.oxygen/vox_oxygen_max) * 1000
 		H.adjustToxLoss(Clamp(ratio, MIN_PLASMA_DAMAGE, MAX_PLASMA_DAMAGE))