-Cleaned up computers. Fixes Issue 1195

-Made computers use idle_power_usage and active_power_usage that it used from the MC.

I'm sure something is likely to break because I removed a lot of snowflake code. I tried to test all the computers with what I can but if you find something odd then please tell me.

git-svn-id: http://tgstation13.googlecode.com/svn/trunk@5369 316c924e-a436-60f5-8080-3fe189b3f50e

code/modules/mining/mine_items.dm

@@ -116,6 +116,8 @@ proc/move_mining_shuttle()
 	var/location = 0 //0 = station, 1 = mining base
 
 /obj/machinery/computer/mining_shuttle/attack_hand(user as mob)
+	if(..(user))
+		return
 	src.add_fingerprint(usr)
 	var/dat
 	dat = text("<center>Mining shuttle:<br> <b><A href='?src=\ref[src];move=[1]'>Send</A></b></center>")