Experimental IPMI driver

I have been working on a new version of the IPMI driver. It's actually not terribly different than the old version (no functional or interface differences), but has the following differences:

* It will properly parse ACPI tables to find IPMI interfaces (the old driver had some ACPI parsing code, but it was broken).
* It supports a SMIC interface.
* It has a socket interface to IPMI.

I'm putting it out for people to beat on, so have at it!

You can get it from SourceForge at
http://sourceforge.net/projects/openipmi/, under "Experimental Driver". There are 2.5.68 and 2.4.20 versions.

-Corey