python-pygobject: new package.

python-pygobject provides Python bindings for GLib, GObject and GIO.

This is the old version of the bindings, used by PyGtk and *not* the
new version which relies on gobject-introspection.
python-xpyb: new package.

python-xpyb offers Python bindings for XCB, the X protocol C-language
binding.
python-pycairo: new package.

python-pycairo offers Python bindings for cairo.

The package is built using the autotools and not waf due to
cross-compiling issues.
python-pygtk: new package.

Python bindings for Gtk+ 2.0.
board: add elebihan demo-pygtk.

New configuration files are available to build a kernel and file system to
showcase PyGtk, with QEMU: one for x86 and the other for ARM.
python-xpyb: fix python include path
python-pycairo: fix python include path
python-pygobject: fix python include path
python-pygtk: fix python include path