update to release of project info reports plugin

git-svn-id: https://svn.apache.org/repos/asf/incubator/npanday/trunk@1607257 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/site/pom.xml b/site/pom.xml
index c76aa1a..89cc7db 100644
--- a/site/pom.xml
+++ b/site/pom.xml
@@ -108,7 +108,7 @@
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-project-info-reports-plugin</artifactId>
-        <version>2.7-SNAPSHOT</version>
+        <version>2.7</version>
         <reportSets>
           <reportSet>
             <reports>