Adding whitespaces.py, a small script for code clean
Running whitespaces.py; no more trailing whitespaces & tabs -> 4 spaces
Revert "Running whitespaces.py; no more trailing whitespaces & tabs -> 4 spaces"

This reverts commit 65e2dcf2f09e979b39f8d115da7d17dabac0b957.
whitespaces.py update 1
running whitespaces.py update 1
Merge remote-tracking branch 'konstin/spaces' : Remove trailing spaces, use spaces and not tabs for indentation
Try to handle case where addons XML file cannot be loaded