[Pharo-dev] [update 3.0] #30285

[Marcus Denker]

30285
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10823 Kill old list model
        https://pharo.fogbugz.com/f/cases/10823
        
11136 RadioButtonGroupExample new openWithSpec is not working
        https://pharo.fogbugz.com/f/cases/11136
        
11174 Add support for sync position of multiple widgets with just one scroll bar
        https://pharo.fogbugz.com/f/cases/11174



Diff information:
http://smalltalkhub.com/mc/Pharo/Pharo30/main/Spec-Examples-MarcusDenker.33.diff
http://smalltalkhub.com/mc/Pharo/Pharo30/main/Polymorph-Widgets-MarcusDenker.859.diff
http://smalltalkhub.com/mc/Pharo/Pharo30/main/Morphic-Base-MarcusDenker.48.diff