
added in view site_slices
WHERE deleted is false
so that deleted slices dont get reported in Site,
and more importantly dont get counted when checking for max_slices at slice creation


dreibh/planetlab-lxc-plcapi,dreibh/planetlab-lxc-plcapi,dreibh/planetlab-lxc-plcapi,dreibh/planetlab-lxc-plcapi