Fixed a bug preventing dual side packets from working in 1.6.4.

An example of a dual side packet is Packet101CloseWindow, which is 
sent by the server when it forces a inventory window to close, or 
by the client to the server when the player voluntarily closes it.

The bug prevented the client-side of a dual side packet from being 
recognized in 1.6.4. Thanks to Shevchikden for discovering the bug, 
and finding the correct build number where it was introduced.

ProtocolLib/src/main/java/com/comphenix/protocol/PacketType.java

@@ -643,7 +643,7 @@ public class PacketType implements Serializable, Comparable<PacketType> {
 	 * @throws IllegalArgumentException If the sender is NULL and the packet doesn't exist.
 	 */
 	public static PacketType fromLegacy(int id, Sender sender) {
-		PacketType type = getLookup().getFromLegacy(id);
+		PacketType type = getLookup().getFromLegacy(id, sender);
 		
 		if (type == null) {
 			if (sender == null)