Fixed M401/M402 memory position bug

From the original repetier repo.
due hangs fixed

Merged from original repetier repo.
[UNTESTED] First try at Watchdog

This is my first shot at getting watchdog to work. Wish me luck!
Revert "[UNTESTED] First try at Watchdog"

This reverts commit 2bd9e476bcf87ce9033c91cfbfeb867725cdbe23.
Second try at Watchdog
AdditionalArduinoFiles added for Watchdog Support

The second try at Watchdog was successful, however, I needed to modify
some Arduino Files to make it work.

IMPORTANT:
Read the README file located at:
src\ArduinoDUE\AdditionalArduinoFiles\README.txt
Fixed hangs on file select

Merged from Original Repetier Repo.
Light On Back light only if off

Back light is set on at each key pressed if powersaving enabled - change
to only when off
Fix : same code is used for Ok button and Right Key

Fix : same code is used for Ok button and Right Key, change code to
allow right key to send UI_ACTION_RIGHT_KEY instead of UI_ACTION_OK, but
keep same logic in main loop for now, this will allow to use right key
for selection in future code instead of having 2 keys with same
function.
Small Bugfix
Revert "Fixed hangs on file select"

This reverts commit 6e8e5e04c39dc97b5a26eda1aa0b648d218d83bf.
Delete files not needed for Da Vinci
Merge pull request #5 from drbogger/Testing

Testing