Changes
* State of the test installation of the stoney cloud and next steps.
* phpldapadmin: Update config to remove default unique attributes like mail and maybe uid as well (uid is enforced by the directory server).
* Two additional selfcare vhosts need to be configured on the stoney cloud (including official certificates).
* Changes in the (online) backup service (both should work for the uid=4000001,ou=customer, ...):
** ou=defaults,uid=4000000,ou=reseller, ... (instead of settings)
