German translations 1/2

Added German translations for de (Casual Honorifics) and de_x_sie
(Formal Honorifics)
Some TODOs remaining and info_acp_thanks.php needs to be completely
translated for both languages
German translations 2/2

Added missing German translations for de (Casual Honorifics) and
de_x_sie
(Formal Honorifics)
Added missing translations
Merge branch 'master' of https://github.com/Mythos94/thanks_for_posts into Mythos94-master
Remove BOM mark from email templates.
Merge branch 'Mythos94-master'