[tox] Require ldap3 < 2 for server tests
Apparently we are using some constants that got dropped/moved in ldap3 >=
2.0.0 (which came out last week). So stay with version 1.4 until this gets
sorted out.
3.34 (UNRELEASED)
=================
New features
------------
* Various bits of a CubicWeb application configuration can be now be
overridden through environments variables matching configuration option
names prefixed by ``CW_`` (for instance ``CW_BASE_URL``).
* Cubes are now standard Python packages named as ``cubicweb_<cubename>``.
They are not anymore installed in ``<prefix>/share/cubicweb/cubes``. Their
discovery by CubicWeb is handled by a new setuptools entry point
``cubicweb.cubes``. A backward compatibility layer is kept for "legacy"
cubes.