DOCS: Updated German README (Liesmich) and NEWS (Neues).

Liesmich now based on README SHA1 ID: 7f1288e8ef3b06d2d0793070da083b2e9c6bc030
Neues now based on NEWS SHA1 ID: 419252dbd64fb6f1a07079384418778c6946242f
I18N: Updated German GUI translation.
I18N: Update Italian translation (from Matteo)
I18N: Regenerate translations data file