Add support in the init for savefolder. Developed by gyro.

This is based on modifications suggested by puppy forum member "gyro"
see http://www.murga-linux.com/puppy/viewtopic.php?t=93559
Add support in drive-mounting scripts for savefolder.

This is based on modifications suggested by puppy forum member "gyro"
see http://www.murga-linux.com/puppy/viewtopic.php?t=93559