add missing credits from last commit

git-svn-id: https://pmd.svn.sourceforge.net/svnroot/pmd/trunk@7408 51baf565-9d33-0410-a72c-fc3788e3496d

pmd/etc/changelog.txt

@@ -470,6 +470,7 @@ Improved include/exclude pattern matching performance for ends-with type pattern
 Modify (and hopefully fixed) CPD algorithm thanks to a patch from Juan Jesús García de Soria.
 Fixed character reference in xml report - thanks to Seko
 Enhanced SuspiciousEqualsMethodName rule - thanks to Andy Throgmorton
+Add a script to launch CPDGUI on Unix system - thanks to Tom Wheeler
 
 New Java rules:
 

pmd/xdocs/credits.xml

@@ -326,6 +326,7 @@
             <li>Cd-Man - patch to improve CPD performance</li>
             <li>Suresh - new rule DontUseFloatTypeForLoopIndices</li>
             <li>Dinesh Bolkensteyn and SonarSource - support Java 7</li>
+            <li>Tom Wheeler - contribute a launch script for CPD GUI</li>
         </ul>
         </subsection>
         <subsection name="Organizations">