- 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
- support for parameter spec of form "type=XXX" to denote that the parameter must be an object of the specified type (class; directly or indirectly) - new built-in converter: convertToObjectOfType() - keep parameterObj (source for conversion to XOTclParam) for making introspection less work. However, this is only used for XOTclParams generated via ParamParse(). - extending regression test