[update 1.4] #14347

14347
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Issue 5348: simplify #cleanUpForRelease a little
        http://code.google.com/p/pharo/issues/detail?id=5348

Issue 5347: StartupPreferences has no repository attached
        http://code.google.com/p/pharo/issues/detail?id=5347

Issue 5346: FlatMessageListBrowser send error when a menu action is selected when no item is selected
        http://code.google.com/p/pharo/issues/detail?id=5346


--
Marcus Denker -- http://marcusdenker.de