[tests] Port unittest_cwctl to py3k
On python 2, sys.stdout takes bytes-like objects whereas python 3's
takes unicode-like objects and handles the encoding on its own.
.. _RQLChapter:
Relation Query Language (RQL)
=============================
This chapter describes the Relation Query Language syntax and its implementation in CubicWeb.
.. toctree::
:maxdepth: 2
intro
language
debugging
implementation