Update to 1.1.2, update HOMEPAGE.

Urwid 1.1.2
===========

2013-12-30

* Move to urwid.org and use sphinx docs for generating whole site,
  move changelog to docs/changelog.rst

* Fix encoding exceptions when unicode used on non-UTF-8 terminal

* Fix for suspend and resume applications with ^Z

* Fix for tmux and screen missing colors on right bug

* Fix Pile zero-weighted items and mouse_event when empty

* Fix Terminal select() not retrying when interrupted by signal

* Fix for Padding.align and width change not invalidating

(wiz)