Update release plugin.

Author: JakeWharton

pom.xml

@@ -180,7 +180,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-release-plugin</artifactId>
-        <version>2.3.2</version>
+        <version>2.5</version>
         <configuration>
           <autoVersionSubmodules>true</autoVersionSubmodules>
         </configuration>