From: Corey Minyard <minyard@acm.org>

- Add support for messaging through an IPMI LAN interface, which is
  required for some system software that already exists on other IPMI
  drivers.  It also does some renaming and a lot of little cleanups.

- Add the "System Interface" driver.  The previous driver for system
  interfaces only supported the KCS interface, this driver supports all
  system interfaces defined in the IPMI standard.  It also does a much better
  job of handling ACPI and SMBIOS tables for detecting IPMI system
  interfaces.