- support for all string constraints provided by "string is ... $value" in object and method parameters ("alum", "alpha", ..., "xdigit"). Technically, these types are tclobjs (using converter convertToTclobj) having pParm->converterArg set to the constraints. - extended regression test
- cleanup of legacy stuff in slot management. * merged InfoSlot and InterceptorSlot into RelationSlot * get rid of legacy "mixin set ...." command - renamed "parameterSlot" into "methodParameterSlot" to avoid potential confusions