-Killed the updateDialog lag. I added a check to see if there were any mobs to update, if not it will stop checking until a user uses the machine again. I had to replace all the machine = src and machine = null with procs to help make it manageable. I believe this is one of the culprits causing the server to lag as the round goes on, as more players will interact with machines.

-Atmos delay is now based on active players, to help fight lag for massive player rounds.

-Changed some for(blah in world) loops to use the correct lists.

git-svn-id: http://tgstation13.googlecode.com/svn/trunk@4958 316c924e-a436-60f5-8080-3fe189b3f50e

code/game/objects/structures/musician.dm

@@ -425,7 +425,7 @@
 	if(!anchored)
 		return
 
-	usr.machine = src
+	usr.set_machine(src)
 
 	/*
 	BPM TO TEMPO

code/game/objects/structures/noticeboard.dm

@@ -40,7 +40,7 @@
 
 /obj/structure/noticeboard/Topic(href, href_list)
 	..()
-	usr.machine = src
+	usr.set_machine(src)
 	if(href_list["remove"])
 		if((usr.stat || usr.restrained()))	//For when a player is handcuffed while they have the notice window open
 			return

code/game/objects/structures/safe.dm

@@ -73,7 +73,7 @@ FLOOR SAFES
 
 
 /obj/structure/safe/attack_hand(mob/user as mob)
-	user.machine = src
+	user.set_machine(src)
 	var/dat = "<center>"
 	dat += "<a href='?src=\ref[src];open=1'>[open ? "Close" : "Open"] [src]</a> | <a href='?src=\ref[src];decrement=1'>-</a> [dial * 5] <a href='?src=\ref[src];increment=1'>+</a>"
 	if(open)

code/game/objects/structures/tank_dispenser.dm

@@ -33,7 +33,7 @@
 
 
 /obj/structure/dispenser/attack_hand(mob/user as mob)
-	user.machine = src
+	user.set_machine(src)
 	var/dat = "[src]<br><br>"
 	dat += "Oxygen tanks: [oxygentanks] - [oxygentanks ? "<A href='?src=\ref[src];oxygen=1'>Dispense</A>" : "empty"]<br>"
 	dat += "Plasma tanks: [plasmatanks] - [plasmatanks ? "<A href='?src=\ref[src];plasma=1'>Dispense</A>" : "empty"]"
@@ -68,7 +68,7 @@
 	if(usr.stat || usr.restrained())
 		return
 	if(get_dist(src, usr) <= 1)
-		usr.machine = src
+		usr.set_machine(src)
 		if(href_list["oxygen"])
 			if(oxygentanks > 0)
 				var/obj/item/weapon/tank/oxygen/O