Garry: What qualities make a college professor so unforgettable that former students travel from all over the country to wish them well in retirement? In the instance of Jane Briggs Bunting, those students say they sensed that she truly cared about them, wanted them to excel in both life and work, and instilled in them the confidence to do so. Yes, as a journalism teacher, they say, Jane was taxing. Her media law classes — conducted in the Socratic style …