[patch] Add the reverse of PREPEND_WWW, which strips leading "www."

[pa-ching]

I actually wanted the exact reverse functionality given by PREPEND_WWW, so I made this tiny addition. Just a nit-picky thing, not very important.

[pa-ching]

My mistake! Fixed a little error.

[Adrian Holovaty]

This is a bit too much of a special case, so I don't think it should go in Django proper. But you can just use your own custom middleware to do it.

[Anogar]

I think this should be revisited. This simply rounds out the functionality of the Common middleware's ability to perform very basic redirects. More and more people are going by simply "domain.com" instead of "www.domain.com", and providing a simple method in the core middleware alongside the PREPEND_WWW method makes a lot of sense.

[Russell Keith-Magee]

If you disagree with a decision that has been made, you should start a discussion on django-developers.