This includes some significant cleanups to the new course categories
system. The basic idea is that the categories/course browser is now
unified under one system, and admin features related to that have
all been moved into the browser (as little icons).
I'm much happier with this as a foundation that can scale and be
built upon.
Still to go:
- searching
- paging
- polishing
Also in here are a lot of little cleanups around the place, such as
the initial setup process.
Hopefully this is also the end of the occasional errors we keep
hearing about to do with never getting to setup the admin user.
(I think admin/site.php had a redirect that didn't always work).
The setup process is now much better at "trapping" you until it's all done.
Should be fixed now. As a bonus, I've removed all the uses of
HTTP_POST_VARS from all scripts.
All forms should use the new data_submitted() function to collect
form data (it does the match_referer thing internally now).
Much nicer.
Sections covers "weeks", "topics" and anything else that may come along.
Note, again, some databases have changed esp course_weeks -> course_sections
and several fields called "week" are now "section. Also course no longer
has an enddate, but instead has a numsections field.
