-Fixed up floor arrow icons so that they're not just the same one rotated around.

-Made chemistry a bit less reinforced.
-Moved more engineering equipment to access_engine_equip.

git-svn-id: http://tgstation13.googlecode.com/svn/trunk@5413 316c924e-a436-60f5-8080-3fe189b3f50e

code/modules/power/singularity/collector.dm

@@ -9,7 +9,7 @@ var/global/list/rad_collectors = list()
 	anchored = 0
 	density = 1
 	directwired = 1
-	req_access = list(access_engine)
+	req_access = list(access_engine_equip)
 //	use_power = 0
 	var/obj/item/weapon/tank/plasma/P = null
 	var/last_power = 0