Further toward upgrade function (not there yet, though). Minor change to tcpdf_config.php to remove reference to extended images directory, likely (now) causing issue with logo image (fixed). Started adding new feature: set header/footer text/separator colors (tested, but commented out until we have a color picker added to the admin UI).

git-svn-id: https://plugins.svn.wordpress.org/wp-post-to-pdf-enhanced/trunk@936249 b8457f37-d9ea-0310-8a92-e5e31aec5664