Fixed footer bug (needed to print footer before html-content)

git-svn-id: https://plugins.svn.wordpress.org/pdf-generator/trunk@816816 b8457f37-d9ea-0310-8a92-e5e31aec5664
Changed tag version

git-svn-id: https://plugins.svn.wordpress.org/pdf-generator/trunk@816817 b8457f37-d9ea-0310-8a92-e5e31aec5664