Regressed to use pdfbox 1.8.6

It has a nice "render" option (also the API is available and easier to
work with)
Playing around with extracting pdf images
Fixed annotations blocking text

Also cleaned up some magic numbers and handle more than one
quadrilateral
Dang.  Deadend.  I forgot GAE doesn't support AWT
Merge branch 'including-blurb' into including-blurb-2