use Fluido skin 1.5 since m-site-p 3.5.x requires at least this version

git-svn-id: https://svn.apache.org/repos/asf/maven/pom/trunk@1741867 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/maven/src/site/site.xml b/maven/src/site/site.xml
index cdfe964..dcb48ca 100644
--- a/maven/src/site/site.xml
+++ b/maven/src/site/site.xml
@@ -36,7 +36,7 @@
   <skin>
     <groupId>org.apache.maven.skins</groupId>
     <artifactId>maven-fluido-skin</artifactId>
-    <version>1.4</version>
+    <version>1.5</version>
   </skin>
 
   <custom>