[Pharo-project] [update 2.0] #20404

[Marcus Denker]

20404
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Issue 6994:     move DisplayScreen >> #defaultCanvasClass to Morphic
        http://code.google.com/p/pharo/issues/detail?id=6994
        
Issue 6993:     update Pharo Kernel generation
        http://code.google.com/p/pharo/issues/detail?id=6993
        
Issue 6991:     Move #cleanUpForProduction to its own class
        http://code.google.com/p/pharo/issues/detail?id=6991



Diff information:
http://ss3.gemstone.com/ss/Pharo20/Tools-MarcusDenker.980.diff
http://ss3.gemstone.com/ss/Pharo20/System-Support-MarcusDenker.735.diff
http://ss3.gemstone.com/ss/Pharo20/Morphic-MarcusDenker.1284.diff
http://ss3.gemstone.com/ss/Pharo20/Graphics-Display Objects-MarcusDenker.88.diff

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Marcus Denker -- http://marcusdenker.de