o added mavenVersion property when not already there
o used mavenVersion property for maven prerequisite

git-svn-id: https://svn.apache.org/repos/asf/maven/plugins/trunk@1088401 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/pom.xml b/pom.xml
index 30b60fe..8869948 100644
--- a/pom.xml
+++ b/pom.xml
@@ -115,7 +115,7 @@
   </contributors>
 
   <prerequisites>
-    <maven>2.0.6</maven>
+    <maven>${mavenVersion}</maven>
   </prerequisites>
 
   <scm>