Documentation and examples

Author: alaisi

src/main/java/com/github/pgasync/impl/io/StartupEncoder.java renamed to src/main/java/com/github/pgasync/impl/io/StartupMessageEncoder.java

@@ -20,7 +20,15 @@
 
 import com.github.pgasync.impl.message.Startup;
 
-public class StartupEncoder implements Encoder<Startup> {
+/**
+ * See <a href="www.postgresql.org/docs/9.3/static/protocol-message-formats.html">PostgreSQL message formats</a>
+ *
+ * <pre>
+ *</pre>
+ *
+ * @author Antti Laisi
+ */
+public class StartupMessageEncoder implements Encoder<Startup> {
 
     @Override
     public Class<Startup> getMessageType() {

src/main/java/com/github/pgasync/impl/message/Startup.java renamed to src/main/java/com/github/pgasync/impl/message/StartupMessage.java

@@ -14,13 +14,16 @@
 
 package com.github.pgasync.impl.message;
 
-public class Startup implements Message {
+/**
+ * @author  Antti Laisi
+ */
+public class StartupMessage implements Message {
 
     final int protocol = 196608;
     final String username;
     final String database;
 
-    public Startup(String username, String database) {
+    public StartupMessage(String username, String database) {
         this.username = username;
         this.database = database;
     }