[update 1.3] #13218

13218
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Issue 4289: TextLineInterval only referenced from unsent methods
        http://code.google.com/p/pharo/issues/detail?id=4289

Issue 4288: Remove unneeded check in #currentCursor:
        http://code.google.com/p/pharo/issues/detail?id=4288

Issue 4278: cleanup methods not needed...
        http://code.google.com/p/pharo/issues/detail?id=4278


--
Marcus Denker  -- http://www.marcusdenker.de
INRIA Lille -- Nord Europe. Team RMoD.