some experimenting...

Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>
refactored DATA save mechanics, now only saves a file when it's updated (backwards compatible)...

Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>
bumped DATA version to 2.2...

Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>