Upgrade to apache master pom ver 7

git-svn-id: https://svn.apache.org/repos/asf/struts/maven/trunk@947073 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pom/pom.xml b/pom/pom.xml
index f9b4d7c..1aead20 100755
--- a/pom/pom.xml
+++ b/pom/pom.xml
@@ -22,7 +22,7 @@
    <parent>
       <groupId>org.apache</groupId>
       <artifactId>apache</artifactId>
-      <version>3</version>
+      <version>7</version>
    </parent>
    <groupId>org.apache.struts</groupId>
    <artifactId>struts-master</artifactId>