40208
13964 The examples in class WidgetExamples should be on the class side	https://pharo.fogbugz.com/f/cases/1396413966 Cleanup MorphicTests package	https://pharo.fogbugz.com/f/cases/1396613963 Cleanup Morphic-Widgets-Tree package	https://pharo.fogbugz.com/f/cases/1396313968 Provide clickable examples for Athens	https://pharo.fogbugz.com/f/cases/1396813970 Fix category typo in ProtoObject	https://pharo.fogbugz.com/f/cases/13970

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