[Pharo-dev] [update 3.0] #30254

[Marcus Denker]

30254
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7492 Convert MetacelloConfigurationBrowser to Spec
        https://pharo.fogbugz.com/f/cases/7492
        
11056 Traits in _UnpackagedPackage
        https://pharo.fogbugz.com/f/cases/11056


Diff information:
http://smalltalkhub.com/mc/Pharo/Pharo30/main/Tools-MarcusDenker.1168.diff