20285
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Issue 6659: Nautilus duplicates window announcements
http://code.google.com/p/pharo/issues/detail?id=6659
Issue 6621: some fixes to Nautilus protocols use
http://code.google.com/p/pharo/issues/detail?id=6621
Issue 1717: Object and Class should have simple testing methods for trait
use
http://code.google.com/p/pharo/issues/detail?id=1717
Issue 6664: Speed up CompiledMethod >> #isOverriden
http://code.google.com/p/pharo/issues/detail?id=6664-- Marcus Denker -- http://marcusdenker.de
