Add missing image (thanks to Paul Wheels).
Fix bugs in german translation file (modify ä,ö and ü).
Fix some GUI bugs.
Fix bug in disk format page.
Fix some bugs in build scripts.
Improve scponly build script (add missing options files)
Add modified german translation file (thanks to Falk Menzel)
fix the first bug on the disk format page
permit to enable SSH TCP forwarding
add little information on the pot file
