[tox] Enable all applicable py34 environments
All except etwist.
Comes with a few tricks in tox.ini:
* add ``-e.`` to force installing of cubicweb in development because
dependency cubes would otherwise install cubicweb 3.22 (the latest release),
which is not python3 installable.
* "install" cubes/__init__.py because the file is not installed in
develop mode; maybe this file should be managed by cubes themselves...
\.svn
^build$
^dist$
\.egg-info$
^.tox$
\.pyc$
\.pyo$
\.bak$
\.old$
\~$
\#.*?\#$
\.swp$
^doc/book/en/apidoc$
\.old$
syntax: regexp
.*/data.*/database/.*
.*/data/ldapdb/.*
.*/data/uicache/
.*/data/cubes/.*/i18n/.*\.po
^doc/html/
^doc/doctrees/
^doc/book/en/devweb/js_api/
^doc/_build
^doc/js_api/