[Systems] Documentation on Bender

[Bernie Innocenti]

Sascha, would you mind updating the documentation on bender to include
the current setup of the buildslaves and how they were created?

  http://wiki.sugarlabs.org/go/Machine/bender

In particular, I don't know how to:

 * add a new machine

 * log into the existing buildslaves from the console
   (did we set have a root password?)

 * get buildslave-fedora-12-64bit to boot (how was it created?)

-- 
   // Bernie Innocenti - http://codewiz.org/
 \X/  Sugar Labs       - http://sugarlabs.org/