Univention Corporate Server 3.2 erratum 169 (bugfix)

This update fixes the following issues:
* The property that is used in the first column of the grid ("Name") is
  now configurable via UCR
* Some UDM attributes are shown as readonly if the domain is part of an
  Active Directory Domain
* Display a warning in Active Directory Mode before creating objects which
  are not synchronized back to AD.
* Display a human readable error message when the connection to the LDAP
  server failed.