GC cleanup

Cleaned up some GC code and properly implemented it for wireless datums
Remote buttons are now fully working with emitters and crematoriums

code/modules/wireless/devices.dm

@@ -1,6 +1,16 @@
 /datum/wifi/receiver/button
 	var/obj/parent
 
+/datum/wifi/receiver/button/New(var/new_id, var/obj/O)
+	id = new_id
+	if(istype(O))
+		parent = O
+	..()
+
+/datum/wifi/receiver/button/Destroy()
+	parent = null
+	return ..()
+
 /datum/wifi/receiver/button/proc/activate(mob/living/user)
 
 
@@ -11,27 +21,17 @@
 //-------------------------------
 // Emitter
 //-------------------------------
-/datum/wifi/receiver/button/emitter/New(var/new_id, var/obj/machinery/power/emitter/E)
-	id = new_id
-	if(istype(E))
-		parent = E
-	..()
-
 /datum/wifi/receiver/button/emitter/activate(mob/living/user)
 	..()
 	var/obj/machinery/power/emitter/E = parent
-	E.activate(user)
+	if(istype(E))
+		E.activate(user)
 
 //-------------------------------
 // Crematorium
 //-------------------------------
-/datum/wifi/receiver/button/crematorium/New(var/new_id, var/obj/structure/crematorium/C)
-	id = new_id
-	if(istype(C))
-		parent = C
-	..()
-
 /datum/wifi/receiver/button/crematorium/activate(mob/living/user)
 	..()
 	var/obj/structure/crematorium/C = parent
-	C.cremate(user)
+	if(istype(C))
+		C.cremate(user)

code/modules/wireless/interfaces.dm

@@ -5,9 +5,10 @@
 	connected_devices = new()
 
 /datum/wifi/Destroy(var/wifi/device)
-	..()
 	for(var/datum/wifi/D in connected_devices)
 		D.disconnect_device(src)
+		disconnect_device(D)
+	return ..()
 
 /datum/wifi/proc/connect_device(var/datum/wifi/device)
 	connected_devices |= device
@@ -26,9 +27,8 @@
 	wirelessProcess.add_device(src)
 
 /datum/wifi/receiver/Destroy()
-	..()
 	wirelessProcess.remove_device(src)
-
+	return ..()
 
 
 /datum/wifi/sender
@@ -37,6 +37,7 @@
 /datum/wifi/sender/New(var/new_target)
 	..()
 	target = new_target
+	send_connection_request()
 
 /datum/wifi/sender/proc/set_target(var/new_target)
 	target = new_target