filmscanners: VueScan and SprintScan 120

[EdHamrick]

If you have a SprintScan 120, I recommend you not use
VueScan 7.0.26 or 7.0.27 with it.  I've gotten two reports
that VueScan kills the scanner, probably popping an internal
fuse.

I'm urgently releasing a version of VueScan that will
disable all commands to the SprintScan 120 until I can
get Polaroid/Microtek to figure out what's wrong.

Regards,
Ed Hamrick