Merge remote-tracking branch 'upstream/develop' into develop

CHANGE.md

+# Release Notes
+
+## 1.1.0
+
+### New Features
+
+- Support Java bigdecimal<https://github.com/apache/dubbo-go/pull/126>；
+- Support all JDK exceptions<https://github.com/apache/dubbo-go/pull/120>；
+- Support multi-version of service<https://github.com/apache/dubbo-go/pull/119>；
+- Allow user set custom params for registry<https://github.com/apache/dubbo-go/pull/117>；
+- Support zookeeper config center<https://github.com/apache/dubbo-go/pull/99>；
+- Failsafe/Failback  Cluster Strategy<https://github.com/apache/dubbo-go/pull/136>;
+
+### Enhancement
+
+- Use time wheel instead of time.After to defeat timer object memory leakage<https://github.com/apache/dubbo-go/pull/130> ；
+
+### Bugfixes
+
+- Preventing dead loop when got zookeeper unregister event<https://github.com/apache/dubbo-go/pull/129>；
+- Delete ineffassign<https://github.com/apache/dubbo-go/pull/127>；
+- Add wg.Done() for mockDataListener<https://github.com/apache/dubbo-go/pull/118>；
+- Delete wrong spelling words<https://github.com/apache/dubbo-go/pull/107>；
+- Use sync.Map to defeat from gettyClientPool deadlock<https://github.com/apache/dubbo-go/pull/106>；
+- Handle panic when function args list is empty<https://github.com/apache/dubbo-go/pull/98>；
+- url.Values is not safe map<https://github.com/apache/dubbo-go/pull/172>;