Issue 50 print survey comments

Address issue #50 by capturing the answers to the survey questions, "What do you hope to learn in CS410J" and "What else would you like to tell me?" as "notes" on the Student created by the Survey program.  The "notes" are then printed by the program that imports Students into the grade book.  Along the way, I introduced better logging into the code that downloads emails (using logback) and refactored the `Submit` program to be more readable.