[Urwid] Urwid 1.2.2

[Ian Ward]

Urwid 1.2.2 is now available on http://urwid.org/ and pypi. This is a
bugfix-only release that includes a fix for a serious performance
regression.

Changelog is here: http://urwid.org/changelog.html

Thanks to everyone that has contributed. Version 1.3.0 should be
coming pretty soon. Grab the latest master if you'd like to help test
the new asyncio event loop support.

Ian