6bb61fa Fix up repo definitions

Authored and Committed by bruno 10 years ago
    Fix up repo definitions
    
    Someone noticed that I messed up the repo definitions for live images,
    but the fix wasn't right for the live images. The install image uses
    a source repo, but the live images don't. The repo commands for the
    install image are in the install image itself. It is also safe to
    include the updates repo since an updates repo is created for branched
    that has no packages and stays that way until release is gold. That
    way the same repo set can be used before and after release. Also a
    commented out repo definition for updates-testing is provided to help
    people who want to enable that.
    
        
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