[entities] Optimize CWUser.properties. This property gets called each time a user connects to a repository, which means a lot. This optimisation cuts its execution time by 5 according to my tests

#!/bin/sh -e
if [ "$1" = "purge" ] ; then
        update-rc.d cubicweb remove >/dev/null
fi
 
#DEBHELPER#
 
exit 0