Finally added department satchels to the game!

-Any instance where dept backpacks would spawn would have a 50% chance of spawning a dept satchel instead
-brown satchels have been replaced with grey ones, although the classic brown ones are still available in the luxury dorms
-Satchels have in-hands now, so you can't run around with backpacks full of bombs unnoticed anymore

git-svn-id: http://tgstation13.googlecode.com/svn/trunk@4079 316c924e-a436-60f5-8080-3fe189b3f50e

code/defines/obj/storage.dm

@@ -2,6 +2,7 @@
 	name = "backpack"
 	desc = "You wear this on your back and put items into it."
 	icon_state = "backpack"
+	item_state = "backpack"
 	w_class = 4.0
 	flags = FPRINT|TABLEPASS
 	slot_flags = SLOT_BACK	//ERROOOOO
@@ -108,6 +109,7 @@
 	name = "satchel"
 	desc = "It's a very robust satchel to wear on your back."
 	icon_state = "satchel"
+	item_state = "backpack"
 
 /obj/item/weapon/storage/backpack/satchel/withwallet
 	New()
@@ -125,11 +127,13 @@
 	name = "industrial satchel"
 	desc = "A tough satchel with extra pockets."
 	icon_state = "satchel-eng"
+	item_state = "engiepack"
 
 /obj/item/weapon/storage/backpack/satchel_med
 	name = "medical satchel"
 	desc = "A sterile satchel used in medical departments."
 	icon_state = "satchel-med"
+	item_state = "medicalpack"
 
 /obj/item/weapon/storage/backpack/satchel_vir
 	name = "virologist satchel"
@@ -155,6 +159,7 @@
 	name = "security satchel"
 	desc = "A robust satchel for security related needs."
 	icon_state = "satchel-sec"
+	item_state = "securitypack"
 
 /obj/item/weapon/storage/backpack/satchel_hyd
 	name = "hydroponics satchel"