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/server/maps/MapleHiredMerchant.java

@@ -41,7 +41,6 @@ import tools.locks.MonitoredReentrantLock;
 import net.server.Server;
 import server.MapleInventoryManipulator;
 import server.MapleItemInformationProvider;
-import server.MaplePlayerShopItem;
 import tools.DatabaseConnection;
 import tools.MaplePacketCreator;
 import tools.Pair;