[update 1.4] #14205

14205
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Issue 4927: Remove duplicate InputEvent sensor entry in startup/shutdown lists ( running out of semaphores )
        http://code.google.com/p/pharo/issues/detail?id=4927
Issue 4683: Code completion breaks search fields
        http://code.google.com/p/pharo/issues/detail?id=4683
Issue 4921: MIMEDocument class >> guessTypeFromName: should return a String
        http://code.google.com/p/pharo/issues/detail?id=4921
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Marcus Denker -- http://marcusdenker.de