Bug 17543: Update German web installer sample files for 16.11

Bug 17543: Update German web installer sample files for 16.11

Updates sample files with German translations:
- Sample notices for article requests

To test:
- Make sure the German web installer installs all
  sample files correctly.
- Bonus: check German translations.

Signed-off-by: Bernardo Gonzalez Kriegel <bgkriegel@gmail.com>
Tested german installer/translation
No errors

Signed-off-by: Jonathan Druart <jonathan.druart@biblibre.com>
Amended patch:
- Authorised value HSBND_FREQ
is done by bug 17576 (and correctly translated in German)

Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>