v0.3.1a: cleaned up quickslot autotargeting:

- quickslots will now only autotarget enemies they can actually auto-aim for.
- cleaned up code for determining which items should use targeting

src/com/shatteredpixel/shatteredpixeldungeon/items/wands/Wand.java

@@ -78,6 +78,7 @@ public abstract class Wand extends Item {
 	
 	{
 		defaultAction = AC_ZAP;
+		usesTargeting = true;
 	}
 	
 	@Override