Translated new phrases to German

Signed-off-by: Jan-Christoph Ihrens <ihrens@cc-services.de>
Fix the bugfix.

Prepare the output even if $striptags is not set (wherever it should be
set. Did not find that.)
[#8127] Fix latest comments bug due to fix in [#7660] (gh#64)
Merge remote-tracking branch 'enigmatic-user/german_translation' into develop

* enigmatic-user/german_translation:
  Translated new phrases to German
[#8368] Enable usage of MODX tags in email tpls
[#8367] Better respecting of Context Settings in setting references
[#9323] Better sanitization of POST values in ThreadReply
Bump version for 2.3.3 patch release