Neo City + Revamped EllinPQ + New Release

Fixed Neo City area, now playable.
Overhauled the EllinPQ mechanics, such as the "CLEAR" effect when passing maps, and some bug fixes along the way.
Refactored a lot of out-of-place classes and properly renamed a few others through the project.
Updated readme and licenses through the source, preparing the stage for the new release.

src/net/server/channel/handlers/UseCashItemHandler.java

@@ -46,7 +46,7 @@ import net.server.Server;
 import scripting.npc.NPCScriptManager;
 import server.MapleInventoryManipulator;
 import server.MapleItemInformationProvider;
-import server.MaplePlayerShopItem;
+import server.maps.MaplePlayerShopItem;
 import server.MapleShop;
 import server.MapleShopFactory;
 import server.TimerManager;