[Pharo-project] on the way to smalltalkimage/systemdictionary

Hi guys I think that we should remove all the code that is not about class management from SystemDictionary. this is the easy part. Now what do we do for the class management behavior defined in Smalltalk image (allclasses, allTraits, associationsAt:, at:, at:put:.......) because now this code is in systemDictionary - we could replace Smalltalk by Smalltalk globals - deprecate the Smalltalk associationAt:.at:...and others What do you think? Stef