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Issue 4986: Removing NewTextMorph and related
http://code.google.com/p/pharo/issues/detail?id=4986
Issue 4987: Latest Polymorph improvements
http://code.google.com/p/pharo/issues/detail?id=4987
Issue 4983: PluggableListMorph doesnt handle propoerly selector without arg
for wrapping (and background and separators)
http://code.google.com/p/pharo/issues/detail?id=4983-- Marcus Denker -- http://marcusdenker.de
