[Vm-dev] Cog builds on Hudson

[Igor Stasenko]

I modified the Cog config made by Marcus to sync with my changes in scripts.

https://pharo-ic.lille.inria.fr/hudson/view/Cog/

i also added a new target for building - Stack VM
(except that it not works now, because Hudson can't pick up the built
artifacts despite VM built successfully -- lets wait for Marcus to fix
that , since i'm not expert in Hudson :) ).

Adding another two is also a piece of cake - just copy existing
configuration and change
destination directory and configuration class used for generating
sources and build config.

The script i made for Hudson can work even for macs,
it takes 3 arguments:
 - git repo url
 - working subdirectory name where to place everything
 - cmake configuration class name (which build to perform)

that's all you need to build VM from scratch using Hudson

-- 
Best regards,
Igor Stasenko AKA sig.