20556 ----- Issue 7521: Add PostMaterializationAction to Fueled out stack traces http://code.google.com/p/pharo/issues/detail?id=7521 Issue 7509: intersect:ifNone: Error http://code.google.com/p/pharo/issues/detail?id=7509 Issue 7452: After "ImageCleaner cleanUpForProduction" there are obsolete classes http://code.google.com/p/pharo/issues/detail?id=7452 Diff information: http://ss3.gemstone.com/ss/Pharo20/Tools-EstebanLorenzano.1048.diff http://ss3.gemstone.com/ss/Pharo20/SUnit-Utilities-EstebanLorenzano.10.diff http://ss3.gemstone.com/ss/Pharo20/Polymorph-Widgets-EstebanLorenzano.772.di... http://ss3.gemstone.com/ss/Pharo20/Fuel-EstebanLorenzano.748.diff