调度中心与执行器通讯规范为双向restful，方便跨语言，以及第三方执行器实现；通讯组件xxl-rpc方案调整为Jetty+Gson方案；

xxl-job-admin/src/test/java/com/xxl/job/executor/ExecutorBizTest.java

@@ -19,7 +19,7 @@ import org.junit.Test;
 public class ExecutorBizTest {
 public class ExecutorBizTest {
 
 
     // admin-client
     // admin-client
-    private static String addressUrl = "http://127.0.0.1:8081/";
+    private static String addressUrl = "http://127.0.0.1:9999/";
     private static String accessToken = null;
     private static String accessToken = null;
 
 
     @Test
     @Test