ignore some subdirs

git-svn-id: https://svn.apache.org/repos/asf/pdfbox/trunk@1566516 13f79535-47bb-0310-9956-ffa450edef68
added John and Tilman as new PMC members

git-svn-id: https://svn.apache.org/repos/asf/pdfbox/trunk@1566517 13f79535-47bb-0310-9956-ffa450edef68