[Pharo-project] [update 2.0] #20039

[Marcus Denker]

20039
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Issue 5779:     remove testDuplicateInstanceVariableError
        http://code.google.com/p/pharo/issues/detail?id=5779
        
Issue 5767:     [BUG]: Nautilus has re-bound the explore shortcut
        http://code.google.com/p/pharo/issues/detail?id=5767
        
Issue 5768:     [ENH]: Nautilus - Debug test    
        http://code.google.com/p/pharo/issues/detail?id=5768
        
Issue 5724:     integrate Spotlight in Pharo 2.0
        http://code.google.com/p/pharo/issues/detail?id=5724
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Marcus Denker -- http://marcusdenker.de