changing default constructor to use default host and port (localhost)

src/main/java/redis/clients/jedis/Client.java

@@ -11,6 +11,11 @@ import java.util.Map.Entry;
 import redis.clients.util.SafeEncoder;
 
 public class Client extends BinaryClient implements Commands {
+    
+    public Client() {
+	this(Protocol.DEFAULT_HOST, Protocol.DEFAULT_PORT);
+    }
+    
     public Client(final String host) {
 	super(host);
     }