[serverctl] use repoapi for db-check, add-source, rebuild-fti commands
One more step towards getting rid of dbapi.
#! /bin/sh -e#if [ "$1" = configure ]; then if which install-docs >/dev/null 2>&1; then install-docs -i /usr/share/doc-base/cubicweb-doc fifi#DEBHELPER#exit 0