Written javadoc for many classes

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

src/main/java/com/l2jserver/service/network/NettyNetworkService.java

@@ -14,6 +14,11 @@ import com.l2jserver.game.net.Lineage2PipelineFactory;
 import com.l2jserver.service.AbstractService;
 import com.l2jserver.service.configuration.ConfigurationService;
 
+/**
+ * Netty network service implementation
+ * 
+ * @author <a href="http://www.rogiel.com">Rogiel</a>
+ */
 public class NettyNetworkService extends AbstractService implements
 		NetworkService {
 	private final NetworkConfiguration config;

src/main/java/com/l2jserver/service/network/NetworkConfiguration.java

@@ -5,6 +5,11 @@ import java.net.InetSocketAddress;
 import com.l2jserver.service.configuration.Configuration;
 import com.l2jserver.service.configuration.Configuration.ConfigurationName;
 
+/**
+ * The network {@link Configuration}
+ * 
+ * @author <a href="http://www.rogiel.com">Rogiel</a>
+ */
 @ConfigurationName("network")
 public interface NetworkConfiguration extends Configuration {
 	// TODO set default value

src/main/java/com/l2jserver/service/network/NetworkService.java

@@ -2,5 +2,11 @@ package com.l2jserver.service.network;
 
 import com.l2jserver.service.Service;
 
+/**
+ * The network service is responsible for communicating the server and the game
+ * client. You can see more details in each implementation.
+ * 
+ * @author <a href="http://www.rogiel.com">Rogiel</a>
+ */
 public interface NetworkService extends Service {
 }