Heads up: umass / CAM changes

Greetings,

I just pushed some changes that I've had cooking in my tree for months.

The first group of them improves umass code in various ways.

The next group stops the USB stack from probing for 'quirks' and
changes them all to either be auto probing, or in the case of
SYNCHRONIZE CACHE, only send it if mode page 8 (cache control) is
present. This works on the 50 Flash thumb drives, 20 hard disk
adapters and 10 SD/CF/etc USB adapters. And in some cases, it's a lot
faster since there's no reset that's needed.
It also removes several overly wide quirks that could cause problems
with devices that do support SYNCHRONIZE CACHE and write caches, but
were made by a company that made other devices that didn't support
it..

So, I'm pretty sure this will be a big nop. But if not, please let me know.

Warner