PIN system + player ranking fix + rebalanced equip EXP calculations

Added the PIN feature. Fixed ranking now calculating ranks now
world-based instead of overall. Rebalanced equip exp gain and made
cosmetic equipments no more leveling up (cosmetics leveling up are
useless).

src/net/server/handlers/login/LoginPasswordHandler.java

@@ -65,7 +65,7 @@ public final class LoginPasswordHandler implements MaplePacketHandler {
             return;
         }
         if (c.finishLogin() == 0) {
-        	login(c);
+            login(c);
         } else {
             c.announce(MaplePacketCreator.getLoginFailed(7));
         }