thorpej-cfargs branch merged

[Jason Thorpe <thorpej%me.com@localhost>]

Folks --

I just merged the thorpej-cfargs branch, which contains some mostly-mechanical cleanups and some small but very useful enhancements to the device auto configuration subsystem.  I've made an effort to build just about every kernel config we have, and boot said kernel on a reasonable variety of systems that I have (either real hardware or VMs)... but obviously I can't try everything, so keep an eye out for crashes / panics or other bizarre new behavior during auto configuration and ping me off-list if you encounter any.

Thx.

-- thorpej