[Tails-l10n] (review)[de] Tails 1.6 release notes

Hi,
I translated the release notes for the 1.6 release.
Please note that this is a multi-file commit containing following files:

wiki/src/security/Numerous_security_holes_in_1.5.1.de.po
wiki/src/inc/release_notes/1.6.de.po
wiki/src/news/version_1.6.de.po

Please review:
https://gitlab.com/spriver/tails.git
branch: de_tails_16
commits:
8c7c086d Translated page
34c96812 Initial translation
f076d1db Translated page


Cheers!

spriver