v0.3.0c: trap refactor pt2, traps completely changed to work based on instantiable trap objects instead of terrain types

This makes the trap system far more extendable.

src/com/shatteredpixel/shatteredpixeldungeon/Dungeon.java

@@ -154,7 +154,7 @@ public class Dungeon {
 		quickslot.reset();
         QuickSlotButton.reset();
 		
-		depth = 0;
+		depth = 24;
 		gold = 0;
 
 		droppedItems = new SparseArray<ArrayList<Item>>();