[pyramid] Use existing repo in PyramidCWTest
We thus do not make use of config_from_cwconfig() and build the configurator
instance by hand prior to include 'cubicweb.pyramid'.
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