[server/test] Turn "pull" method of LDAPFeedTestBase into a staticmethod
Because it does not use reference to "self" (which should be "cls" for
classmethod).
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