AIs in intellicards will not be able to move their camera anymore. Limiting them to their own core vision.

Committing Zelack's cleanup and fixes from here:
http://nanotrasen.com/phpBB3/viewtopic.php?f=16&t=11056

Plantbags now correctly pick up plants from trays.
Using a hoe or injecting reagents updates the tray icon.
Plant Analysers now work on seed bags.

git-svn-id: http://tgstation13.googlecode.com/svn/trunk@5173 316c924e-a436-60f5-8080-3fe189b3f50e

code/modules/mob/living/silicon/ai/freelook/eye.dm

@@ -36,10 +36,13 @@
 // It will also stream the chunk that the new loc is in.
 
 /mob/aiEye/proc/setLoc(var/T)
-	T = get_turf(T)
-	loc = T
-	cameranet.visibility(src)
+
 	if(ai)
+		if(!isturf(ai.loc))
+			return
+		T = get_turf(T)
+		loc = T
+		cameranet.visibility(src)
 		if(ai.client)
 			ai.client.eye = src
 		//Holopad
@@ -114,7 +117,6 @@
 		user.sprint = initial
 
 	user.cameraFollow = null
-	src.eye = user.eyeobj
 
 	//user.unset_machine() //Uncomment this if it causes problems.
 	//user.lightNearbyCamera()