new sid mainline

[Ben Elliston]

I am commiting a patch momentarily that incorporates a new simulator
mainline developed by Red Hat last year.  In short, this new mainline
provides an array of new command line options to supplant the need for
front-end scripts to generate a SID configuration file prior to
starting the simulator.  Try sid --help for usage.

The ChangeLog entries, for those that are interested, are at the top
of the main/dynamic/ChangeLog and extend back to 2002-02-08.

Ben