[rqlrewrite] Test and fix potential NameError We were referencing a loop variable, which may lead to a name error and show a potential error if there are several matching variables. To avoid this, introduce a list to hold every encountered variable and process all of them later.

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