[Pharo-project] Updated pharo.org: point to current VMs

[Marcus Denker]

Hi,

To prepare the release, I have changed 

        http://www.pharo-project.org/pharo-download/beta-2-0

to point to the latest VMs. 

With the release, the then current build will be the one for 2.0 and hard-coded 
(to avoid a constant changing VM).  To be updated again for 2.1.


        Marcus