v0.2.3e: refactored quick slot button, should now support multiple instances of itself tied to different quickslots, needs testing

src/com/shatteredpixel/shatteredpixeldungeon/items/artifacts/UnstableSpellbook.java

@@ -13,7 +13,7 @@ import com.shatteredpixel.shatteredpixeldungeon.items.scrolls.ScrollOfMagicMappi
 import com.shatteredpixel.shatteredpixeldungeon.items.scrolls.ScrollOfRemoveCurse;
 import com.shatteredpixel.shatteredpixeldungeon.scenes.GameScene;
 import com.shatteredpixel.shatteredpixeldungeon.sprites.ItemSpriteSheet;
-import com.shatteredpixel.shatteredpixeldungeon.ui.QuickSlot;
+import com.shatteredpixel.shatteredpixeldungeon.ui.QuickSlotButton;
 import com.shatteredpixel.shatteredpixeldungeon.utils.GLog;
 import com.shatteredpixel.shatteredpixeldungeon.windows.WndBag;
 import com.watabou.noosa.audio.Sample;
@@ -197,7 +197,7 @@ public class UnstableSpellbook extends Artifact {
                 }
             }
 
-            QuickSlot.refresh();
+            QuickSlotButton.refresh();
 
             spend( TICK );