- real fix for update function

r244

- fixed problem with some devices and mounting USB on startup (big thanks to
nibb for doing all the tests)
- use same keyboard code for text editor and other on screen keyboard usages
- fixed update procedure
- added auto scroll to text position if the text pointer is expected to be
"under" on screen keyboard
- fixed pointer display in none text editor on screen keyboards
- language files are now merged with current revision

r243

- fixed problem with some devices and mounting USB on startup (big thanks to
nibb for doing all the tests)
- use same keyboard code for text editor and other on screen keyboard usages
- fixed update procedure
- added auto scroll to text position if the text pointer is expected to be
"under" on screen keyboard
- fixed pointer display in none text editor on screen keyboards
- language files are now merged with current revision