wip
fix some other stuff
partial implementation of pangocffi with no cairocffi
wip
other random minor fixes, but its alive!!!
Add pango_layout_set_width to pangocffi
add get/set_ellipsize in pangocffi
Only use the top level export of constants

...reflects an update in xcffib to nuke the xcb module
decode message data void as ints instead of strs
xcffib does this :-)
Use real types for ClientMessageData
Widgets to use cairocffi
Unpack _NET_WM_DESKTOP as an integer

This value should be an integer (I think) and needs to be an integer to
be compared to `len(qtile.groups)` on libqtile/window.py L690.  Doing
this, however, introduces a problem with the Python 3 tests, and so it
always just returns `None`.
Encode the font family as bytes to parse to C
Python 2/3 compatible codebase

Make codebase compatible to run on Python 2 and 3.  Key changes include:

* Using Python 3 style absolute imports

* Use of Python 3 print function

* Proper handling of bytes/string/unicode for Python 2 and 3
  compatibility

* Using `//` for integer division

* Addition of a compatibility layer (libqtile.compat) for things that
  have been moved or renamed between 2 and 3
Run test/scripts/window.py with current executable
Change version argument in bin/qtile
Pickling needs bytes not string
Porting widgets using urllib
Merge branch 'develop' into cffi