Migrate python2 subpackages to python2-django1.11
    
    Per https://fedoraproject.org/wiki/Changes/Django20, main python2-django
    package is being dropped.  Our choices are either to drop our python2
    subpackages or move to new package python2-django1.11.
    
    Other packages such as pungi still seem to be using the python2 kobo
    packages, so let's keep them for now.