[Rock-dev] Checking out autoproj and autobuild by default on master

[Jakob Schwendner]

> behaviour is that autoproj is installed by rubygems. Switching to tracking
> master would make such a big change that it is worth discussing on this ML
> regardless of everything else.
I am in favor of using the master directly if you have rock on master. In
this way it is also much easier to roll out extended features for the
manifest.

Cheers,

Jakob