Drop useless ConstraintInsertionTC This test does nothing and is here from the begining of repo history. Now it raise an error "TypeError: Skipped expected string as 'msg' parameter, got 'SkipTest' instead. Perhaps you meant to use a mark?" Just drop it.

etc/init.d
etc/cubicweb.d
usr/bin
var/log/cubicweb
var/lib/cubicweb/backup
var/lib/cubicweb/instances