Thanks to Mohd Izhar Firdaus Ismail for the following:
    - Major cleanup of spec to be less complex
    - Made the packaging less diverted from the generated tree from upstream
        build script
    - Changed desktop file to use pdf mimetype icon as diveintopython.png is
        corrupted even in upstream zip file
    - Removed unnecessary patches
    - Removed builreq ant as upstream make.sh uses upstream provided jars (we
        might want to use ant from fedora repo, todo: investigate possibility
        of patching make.sh and adding more java buildreqs for this)
    - Switched diveintopython to be a metapackage which pulls
        diveintopython-pdf