Univention Corporate Server 4.4 erratum 632 (bugfix)

This update addresses the following issues:
* The Self Service links in the hamburger menu are no longer visible
  if the corresponding Self Service page was disabled via UCR.
* Blacklists and whitelists for editing a user profile via
  the "Your profile" page of the Self Service and deleting an account
  via the "Delete my account" button on the "Your profile" page are no
  longer configured via the
  umc/self-service/passwordreset/{blacklist,whitelist}/{users,groups}
  UCR variables but the
  umc/self-service/profiledata/{blacklist,whitelist}/{users,groups}
  and
  umc/self-service/account-deregistration/{...}
  UCR variables respectively.