[Pharo-project] [update 2.0] #20240

[Esteban Lorenzano]

20240
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Issue 5772:     Deprecate FileDirectory
        http://code.google.com/p/pharo/issues/detail?id=5772
        
Issue 6499:     New Nautilus version
        http://code.google.com/p/pharo/issues/detail?id=6499
        
Issue 6500:     New Nautilus version
        http://code.google.com/p/pharo/issues/detail?id=6500
        
Issue 6504:     Trait tests mess with the System Announcer
        http://code.google.com/p/pharo/issues/detail?id=6504