Univention Corporate Server 4.4 erratum 238 (bugfix)

This update addresses the following issue(s):
* The UDM module users/user has been prepared for adding the following
  properties:
  initials, postOfficeBox, preferredLanguage, physicalDeliveryOfficeName,
  st (state) and c (country).
  Any extended attribute for those properties should be changed to use the
  same property name as CLIName.
* The UDM module users/user properties departmentNumber and roomNumber
  have been changed to be multivalue, as allowed in the LDAP schema. This
  change has been made to support synchronization with Samba/AD.
* The fallback language for extended attribute translations is now based
  on the primary language of the locale. Austrian German will then be
  translated in German instead of English.