Add 2007 to the copyright list

git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/trunk@569098 13f79535-47bb-0310-9956-ffa450edef68

lib/xmlgraphics-commons.NOTICE.txt

@@ -1,5 +1,5 @@
 Apache XML Graphics Commons
-Copyright 2006 The Apache Software Foundation
+Copyright 2006-2007 The Apache Software Foundation
 
 This product includes software developed at
-The Apache Software Foundation (http://www.apache.org/).
+The Apache Software Foundation (http://www.apache.org/).