[test] Add a trivial test for "wdoc" view We just make sure it gets rendered without errors (which wasn't the case before the previous patch). It does not work on Python 3; this will be fixed in next changeset.

missing-dep-for-interpreter make => make | build-essential | dpkg-dev (usr/*/cubicweb/skeleton/debian/rules)
embedded-javascript-library usr/share/cubicweb/cubes/shared/data/jquery.js