[web] move qunit test back into web and fix the hanging qunit test can not work outside web. a lot of try/finally clause have been added to prevent qunit to hang on error. A not a test a indeed broken. But we at least put in them a running state again..

debian/tmp/usr/bin/cubicweb-ctl usr/bin/
debian/tmp/usr/lib/PY_VERSION/site-packages/cubicweb/cwctl.py usr/lib/PY_VERSION/site-packages/cubicweb
debian/cubicweb-ctl.bash_completion etc/bash_completion.d/cubicweb-ctl