- changed Stack example in tutorial from constructor to :variable - allow just valid specs for :attribute and :variable methods - improved error message for invalid parameter specs (with leading colons) - extended regression test
- nsf.c: * fixed a bug in "info parameter list|... name" when the named parameter is not found (returns now empty, before, it was returing the full list). * added flag "-nocomplain" to nsf::var::unset - nx.tcl * added "delete variable" analogous to "delete attribute" * unset instance variable for object-level "delete attribute" * extended regression test