Update the recording and materials release to say Linux Australia, not
Pycon Australia. This generates a migration because the model text has
change - but also because in the 0001_initial migration it appears that
this help text is stored as a byte string.
This is a bit weird, but realistically running this migration is not
going to cause us any problems so just add it so we don't end up
fighting django along the way.
We don't have these mini-confs (yet).
We don't want these files.
We're not going to rename the release in 0010 and drop all the extra
tables in 0011, we're going to toss them on the cutting room floor and
call it good.
They're in git, we can look at this commit and past ones on how to
recreate these for new proposal additions going forward.
