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Author : ied
Date   : 26/11/1998
Object : Initialisation of the history for K4L
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Author : pdn
Date   : 18/12/1998
Object : Convertation of closed B-Spline surfaces into periodic
         UKI60591
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Author : abv
Date   : 06/01/1999
Object : fix of misprint
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Author : abv
Date   : 18/01/1999
Object : _DirectModification - CTS22022: writing correct pcurves for indirect tori
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Author : abv
Date   : 11/03/1999
Object : _Surface.cxx - make ConvertToPeriodic() return Null if nothing done
         _DirectModification.cxx - PRO18207: force copying of edge if any its
                                   pcurve is to be replaced
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Author : rln
Date   : 30/03/1999
Object : S4135: new class TrsfModification and method ScaleShape
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Author : szv, smh
Date   : 16/04/1999
Object : S4163
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Author : pdn
Date   : 20/04/1999
Object : _DirectModification.cxx - S4181: handling of trimmed surfaces and locations improved
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Author : pdn
Date   : 20/04/1999
Object : .cdl, .cxx, _ConvertToRevolution.cdl/cxx - S4190: new class ConvertToRevolution added
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Author : pdn
Date   : 20/04/1999
Object : .cdl, _LimitDegree - S4188: new class LimitDegree added
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Author : abv
Date   : 20/05/1999
Object : .cxx - S4190: protection against INTERNAL shapes
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