change version and changelog

Author: jwfing

leanengine/pom.xml

@@ -60,7 +60,7 @@
     <dependency>
       <groupId>cn.leancloud</groupId>
       <artifactId>storage-core</artifactId>
-      <version>6.1.10-SNAPSHOT</version>
+      <version>6.2.0-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>org.apache.logging.log4j</groupId>

realtime/pom.xml

@@ -55,7 +55,7 @@
     <dependency>
       <groupId>cn.leancloud</groupId>
       <artifactId>storage-core</artifactId>
-      <version>6.1.10-SNAPSHOT</version>
+      <version>6.2.0-SNAPSHOT</version>
     </dependency>
     <dependency>
       <groupId>com.google.protobuf</groupId>