Many bugfixes and improvements

src/zutil/net/update/UpdateConfigMessage.java

@@ -0,0 +1,15 @@
+package zutil.net.update;
+
+import java.io.Serializable;
+
+/**
+ * A class that contains configuration information
+ * 
+ * @author Ziver
+ */
+class UpdateConfigMessage implements Serializable{
+	private static final long serialVersionUID = 1L;
+	
+	protected String hashAlgorithm;
+	protected boolean compression;
+}