[Pharo-project] [update 1.4] #14276

[Stéphane Ducasse]

14276
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- Issue 5135:   Set>>grow buggy for sets with nil. Thanks Igor Stasenko.
        http://code.google.com/p/pharo/issues/detail?id=5135
        
- Issue 5130:   Remove magicHalo behavior.
        http://code.google.com/p/pharo/issues/detail?id=5130

Stef and Igor Hacking HazelTracer