[maven-release-plugin] prepare release mybatis-3.4.6

pom.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
 
-       Copyright 2009-2017 the original author or authors.
+       Copyright 2009-2018 the original author or authors.
 
        Licensed under the Apache License, Version 2.0 (the "License");
        you may not use this file except in compliance with the License.
@@ -27,7 +27,7 @@
   </parent>
 
   <artifactId>mybatis</artifactId>
-  <version>3.4.6-SNAPSHOT</version>
+  <version>3.4.6</version>
   <packaging>jar</packaging>
 
   <name>mybatis</name>
@@ -112,7 +112,7 @@
     <url>http://github.com/mybatis/mybatis-3</url>
     <connection>scm:git:ssh://github.com/mybatis/mybatis-3.git</connection>
     <developerConnection>scm:git:ssh://[email protected]/mybatis/mybatis-3.git</developerConnection>
-    <tag>HEAD</tag>
+    <tag>mybatis-3.4.6</tag>
   </scm>
   <issueManagement>
     <system>GitHub Issue Management</system>