Give PMD include/exclude filters. Same idea as in Checkstyle.

git-svn-id: https://svn.apache.org/repos/asf/maven/maven-1/plugins/trunk@113685 13f79535-47bb-0310-9956-ffa450edef68

pmd/xdocs/changes.xml

@@ -9,6 +9,9 @@
   <body>
 
     <release version="1.1" date="in CVS">
+      <action dev="epugh" type="add">
+        Adding maven.pmd.includes and maven.pmd.excludes to match functionality in checkstyle plugin.
+      </action>    
       <action dev="dion" type="fix">
         Now respects pom.build.sourceModifications
       </action>