LAM 7.0.RC1 with usability improvements

Changes:

• Lamdaemon can be configured with directory prefix for homedirs
• Account list filters match on substrings instead of whole value
• YubiKey: support to configure multiple verification servers
• Deactivated non-maintained translations: Catalan, Czech, Hungarian, Polish and Turkish
  Contact us if you would like to take over. Translators get LAM Pro for free (commercial use included).
• Docker updates
• Fixed bugs:
  • Missing CSS for Duo
  • Editing of DNs with comma on Windows (210)