de-language and common-words for: en, de, fr for V1.8.3

[Rolandks]

Hey @ all
here as attach: de-language and common-words for: en, de, fr

- de-language.php: New full translation for German Users.

and

- common-words.txt: Most 370 world wide common words for: en, de, fr
(most Statistics frequency words, determined by the Institut for Informatik University of Leipzig)

for PhpDig-Version 1.8.3

Please include in next PhpDig-Version!

-Roland-