Written javadoc for many classes

Signed-off-by: Rogiel <rogiel@rogiel.com>

src/main/java/com/l2jserver/game/net/codec/Lineage2FrameEncoder.java

@@ -5,6 +5,12 @@ import org.jboss.netty.channel.Channel;
 import org.jboss.netty.channel.ChannelHandlerContext;
 import org.jboss.netty.handler.codec.oneone.OneToOneEncoder;
 
+/**
+ * This encoder creates Lineage II frames. Each frame is has a header of 2 bytes
+ * unsigned short.
+ * 
+ * @author <a href="http://www.rogiel.com">Rogiel</a>
+ */
 public class Lineage2FrameEncoder extends OneToOneEncoder {
 	@Override
 	protected Object encode(ChannelHandlerContext ctx, Channel channel,