[Cdash] CDash wiki install page

[Trevor Kellaway]

Bill,

> So, for each project you have a different .cgi bin script that is the 
> trigger script for that project.

Thanks, I'd assumed that this was how it was implemented, but wasn't
sure there might be some other trick I was missing.

I've added a wiki entry, the current implementation is for a single
project only, but simple to update for multiple projects (rename script
from .cgi. to .py and create individual per project .cgi).

 http://www.cdash.org/Wiki/CDash:Dart2AndCDashSubmission


-Trev