[[forum/refresh_and_setup]] indicates some confusion between --setup
and -setup. Both work, but it's clearer if we stick to one in
documentation and code.
A 2012 commit to [[plugins/theme]] claims that "-setup" is required
and "--setup" won't work, but I cannot find any evidence in ikiwiki's
source code that this has ever been the case.
Simple podcast feeds didn't have content tags and I made sure to
keep it that way. This may be unnecessarily conservative. Changing
the behavior to include empty content tags might be fine, but I
don't want to think about it right now, I just want my tests to
keep passing!
The new fancy-podcast tests are copy-pasted-edited from the
simple-podcast tests. These tests shall be refactored.