[Xcb] python binding for core functions

[Thomas Hunger]

Hello, 

since I do not have too much time for this right now I thought I 
should publish it, in case someone else wants to restart or improve  
it.

It contains the very basic functions from xcb which can be used 
without auto-generation. To get the code, use:

$ git clone git://htom.de/python-libxcb

Use e.g. like this (make sure _xcb is in your PYTHONPATH):

import _xcb

# None carries the same meaning as NULL in the c API
c = _xcb.Connection(None, None)
print c.get_maximum_request_length()

e = c.poll_for_event()
print e # should be None
print c.get_file_descriptor()
print c.has_error()
print _xcb.parse_display("xcb.org:0.0")
print c.generate_id()