One more question -- do you really want this change to be for Fedora
20?
Otherwise the new class' name should be F21_OSTreeSetup.
Yeah - it'd have to be F21 here since anaconda in F20 did not have
ostree support. Note that I've also made a lot of changes in
pykickstart structure lately, but I'm willing to do the required fixups
for that myself since I made the mess.
- Chris