This patch makes the feedgen flake8 compatible, fixing some minor issues
along the way. Most noticeable, this switches from tabs to spaces.
Signed-off-by: Lars Kiesow <lkiesow@uos.de>
This patch ensures the compatibility of setting categories for itunes
podcasts even though the new API now supports setting multiple
(sub-)categories.
It also fixes the docs and adjusts them to explicitly mark the old
syntax as deprecated.
Signed-off-by: Lars Kiesow <lkiesow@uos.de>
