Update django-subdomain-instances to 0.7
Remove erroneous closing bracket

With the closing bracket in the URL (which I assume is erroneous), browsers
still see the link as an href (as the RST is parsed in to HTML by GitHub),
but the page won't load because the closing bracket is erroneous.

Fixes this.
Make sure an existing contenttype is renamed.

This migration was trying to change the (speeches, popolospeaker)
contenttype to be (speeches, speaker) which since 80e3f0b4325395951cf89,
probably already exists, causing an error.

Make sure any existing (speeches, speaker) contenttype is therefore
renamed first.
Merge branch 'new_subdomain_instances'
keyboard controls are no longer visible when there are no next or previous sections. Closes #396
Remove unused packages file.
Merge remote-tracking branch 'origin/issue/396-keyboard-controls'
Version 1.2.2.

Bugfix release. Include note to error about upgrading South to 1.0, as
that will use south_migrations directory in preference.
Update bundled CSS for change in 5319257c.
Add dots to join subsections to the narrative line

Fixes #372. Also remove horizontal overflow bug in .section-signpost.
Quieten unneeded warning about new test runner.

Fixes #406.