Updated the language files to stk version 1.0.7
[intl-de] Aktualisiere README Dateien
[intl-de] Use same File Header everywhere
Updated the files to STK 1.0.7.
Changed head of files to new version.
Fixed several mistakes and typos.
Changed "ausgeloggt" to "abgemeldet"
Some more improvements.
_EXPLAIN fitted.
Merge remote-tracking branch 'remotes/Crizz0/intl-de_1_0_7' into intl-de
Merge remote-tracking branch 'remotes/nickvergessen/update-readme' into intl-de
Some modifications for STK 1.0.7
Some minor corrections from review