Fixed acl handling in lists.n -Acls were not checked correctl. If we had permissions...

Fixed acl handling in lists.n -Acls were not checked correctl. If we had permissions to view only phones, we got all systems listed, due to the fact that get_psermission can not differentiate between object types. We have to do this manually, not just iterate through all possible combinations of acl-categrory M      /root/2.6/gosa-all/gosa/plugins/admin/systems/class_filterSYSTEMS.inc dn and check if there is a -r- in the result.

git-svn-id: https://oss.gonicus.de/repositories/gosa/branches/2.6@16335 594d385d-05f5-0310-b6e9-bd551577e9d8