[Urwid] repo move from svn to hg

[Ian Ward]

James Mills wrote:
> Ian,
> 
> Congrats! Mercurial is a great
> distributed version control system!
> 
> We use it at work here and I use
> it for all my project as well.
> 
> wsgi (and hg) may re-spark
> my interest in developing
> with and on urwid :)
> 
> I would be able to help
> with the wsgi/web if you
> need a hand.
> 

Absolutely.  The wsgi code currently works for the tour.py example in
the "default" branch, but the way wsgi uses iterators made quite a few
not-so-pretty changes necessary.

For proper wsgi support we need Python 2.5 so that we can put the
generator inside a try:finally: block.  Without that we can't clean up
the sockets left in the tmp folder.

Requiring 2.5 for wsgi is fine, but I want the rest of the library to
continue to work with Python 2.3+

Ian