nanotrasen to gato

Replaced most instances of Nanotrasen mentions into GATO, though I've kept some that have more sense to be kept as Nanotrasen (like nanotrasen marked stuff and such)

code/game/objects/items/devices/PDA/cart.dm

@@ -103,7 +103,7 @@
 
 /obj/item/cartridge/lawyer
 	name = "\improper S.P.A.M. cartridge"
-	desc = "Introducing the Station Public Announcement Messenger cartridge, featuring the unique ability to broadcast-mark messages, designed for lawyers across Nanotrasen to advertise their useful and important services."
+	desc = "Introducing the Station Public Announcement Messenger cartridge, featuring the unique ability to broadcast-mark messages, designed for lawyers across GATO to advertise their useful and important services."
 	icon_state = "cart-law"
 	access = CART_SECURITY
 	spam_enabled = 1

code/game/objects/items/devices/flashlight.dm

@@ -269,7 +269,7 @@
 
 /obj/item/flashlight/flare
 	name = "flare"
-	desc = "A red Nanotrasen issued flare. There are instructions on the side, it reads 'pull cord, make light'."
+	desc = "A red GATO issued flare. There are instructions on the side, it reads 'pull cord, make light'."
 	w_class = WEIGHT_CLASS_SMALL
 	brightness_on = 7 // Pretty bright.
 	total_mass = 0.8

code/game/objects/items/devices/gps.dm

@@ -65,7 +65,7 @@
 
 /obj/item/gps/internal/base
 	gpstag = "NT_AUX"
-	desc = "A homing signal from Nanotrasen's mining base."
+	desc = "A homing signal from GATO's mining base."
 
 /obj/item/gps/visible_debug
 	name = "visible GPS"

code/game/objects/items/devices/radio/headset.dm

@@ -241,7 +241,7 @@ GLOBAL_LIST_INIT(channel_tokens, list(
 
 /obj/item/radio/headset/headset_cent
 	name = "\improper CentCom headset"
-	desc = "A headset used by the upper echelons of Nanotrasen."
+	desc = "A headset used by the upper echelons of GATO."
 	icon_state = "cent_headset"
 	keyslot = new /obj/item/encryptionkey/headset_com
 	keyslot2 = new /obj/item/encryptionkey/headset_cent