- added "multivalued" to parameter options - made error message produced by XOTclObjErrType look like Tcl's error messages - extended regression test - test utility: changed "?" to return error msg in case of error
- new function ::xotcl::parameterFromSlot (used in argument checker as well) - use ::xotcl::forward in Slot constructor (instead of dispatch) - checking methods on slots for single- and multivalues slots (can be optimized) - extended regression test