Add createsuperuser management command to auth

[Collin Grady <cgrady@…>]

Since we can now add custom commands through apps, auth could provide a createsuperuser command

[Chris Beaven]

I'm not that keen on letting users put the unhashed superuser password on their bash history. My suggestion is that the password is removed as an option, therefore requiring it to be prompted for.

[Collin Grady <cgrady@…>]

Updated patch to drop the --password arg

[Adrian Holovaty]

This is a nice addition, but it needs docs before we can check it in. Who wants to tackle them?

[Øyvind Saltvik <oyvind@…>]

Refactored and fixed signals being registered twice in management/init.py

[Øyvind Saltvik <oyvind@…>]

Forgot to svn add init.py

[Øyvind Saltvik <oyvind@…>]

After seeing the discussion on django-developers made create_superuser.py backwards compatible

[Jeff Anderson]

Docs for this handy patch

[Jeff Anderson]

Hello. I've written up the docs that reflect the changes.

I was able to merge create_superuser.3.diff with the current svn trunk without problems.

[Chris Beaven]

programmerq: couple of typos (usermane, filesestem) so check those when you're documenting. Thanks for the update that the merge is still fine. I think we're ready to promote (but feel free to put a fixed doc patch up and perhaps combine with the actual code patch - it's easy then for the committer).

[Jeff Anderson]

combined patch-- with spelling errors fixed

[Jeff Anderson]

I am in fact a terrible speller, but not that bad. I must have been sleepy when I wrote those up. :)

I've fixed the errors, and looked over my changes again. It should be good to go!

[Jacob]

Be careful generating your patches, programerq: this one was generated in "reverse". Luckily it applies fine with a patch -R, but it confused the heck out of me first!

[Jacob]

(In [7590]) Fixed #5614: added 'manage.py createsuperuser'. Thanks, programmerq.