[Urwid] Patch to use setuptools

[Ian Ward]

Victor Stinner wrote:
> Hi,
> 
> Here is a _small_ patch to be able to use setuptools. It's an extension to 
> distutils which allows great things like building a Python module into a ZIP 
> archive called an egg.
> --
> Another patch: store urwid version in uwird/__init__.py. This may help 
> setuptools... but i'm not sure of that :-) But it's also better to set 
> __version__ variable.

Applied. Thanks.

Ian