use skin released version

git-svn-id: https://svn.apache.org/repos/asf/tomcat/maven-plugin/trunk@1552141 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/src/site/site.xml b/src/site/site.xml
index 3adc944..a06a19b 100644
--- a/src/site/site.xml
+++ b/src/site/site.xml
@@ -30,7 +30,7 @@
   <skin>
     <groupId>org.apache.maven.skins</groupId>
     <artifactId>maven-fluido-skin</artifactId>
-    <version>1.3.1-SNAPSHOT</version>
+    <version>1.3.1</version>
   </skin>
 
   <custom>