use base_uri config in password reset email

Dependencies

• [2] I2WEO2VS fixed bug when updating user when no roles were selected, changed change-password link
• [3] 6ED5NSYT fix; resetting password used to send email to logged in user (typically admin), now to the user whose password is resetted
• [4] SZYDW2DG hydra: added some user admin
• [5] 6KJXJB7N qualify ordery_by clauses when necessary, remove unnecessary order_by's, reported by Ludo, resulted in errors in sqlite
• [*] ZWCTAZGL added newsitems, added some admin options to clear various caches.

Change contents

• replacement in src/lib/Hydra/Controller/Admin.pm at line 161
  [3.2855]→[2.73:161](∅→∅)
  − "You can change your password at http://".hostname_long."/change-password .\n".
  [3.2855]

  [3.2927]
  + "You can change your password at http://".$config{'base_uri'}."/change-password .\n".