release 1.15.2 (#475)

* feat: support lossless event logs

* feat: 无损上下线增加实例参数

* fix: add unit test case

* fix: when register statuses is empty, set unregistered

* fix: too many /online log printing

* release 1.15.2

Author: andrewshan

pom.xml

@@ -65,7 +65,7 @@
 
     <properties>
         <!-- Project revision -->
-        <revision>1.15.2-SNAPSHOT</revision>
+        <revision>1.15.2</revision>
 
         <timestamp>${maven.build.timestamp}</timestamp>
         <skip.maven.deploy>false</skip.maven.deploy>