[Pharo-project] [update 2.0] #20278

[Esteban Lorenzano]

20278
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Issue 6649:     Promote NetworkSystemSettings over HTTPSocket
        http://code.google.com/p/pharo/issues/detail?id=6649
        
Issue 6645:     Deprecate SystemVersion>>majorMinor
        http://code.google.com/p/pharo/issues/detail?id=6645
        
Issue 6643:     Update CI
        http://code.google.com/p/pharo/issues/detail?id=6643
        
Issue 6449:     [ENH]: MCHttpRepository Authentication
        http://code.google.com/p/pharo/issues/detail?id=6449