Programming Assignment 2 Grading:
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Comments to add to student's gradesheet (as an overall comment):
	Good job!

Note: for each top-level part (like the DblListnode class) that a student gets 
completely correct, make sure to add the comment:
	Good job!
so the student's gradefile contains some feedback for that part

Late Days:
Make sure to add at least one of these comments:
	Program submitted on time
	1 day late
	2 days late
	3 days late
	Free days used up, late penalty applies
To determine how many late days a student used and if a penalty applies, look 
in the file:

  /p/course/cs367-hasti/private/grading/cs367LateDays.xls
  (Note: this file hasn't been created yet but will be shortly - I'll send you
   email when it has been)

Make sure you add both one of the comments above (so the student knows how late
this program was turned it) and to select a deduction from the Late Days section
for the number of penalty days the student received (if appropriate).

Make sure to test:

- student's entire submission
  If the student did not correctly implement getting user input from a file,
  use input redirection (i.e., < ) to test the student's program

- student's Playlist (and DblListnode, EmptySequenceException, and 
  PlaylistIterator) with our PlaylistTester
  You'll need to develop an input file for this.

Make sure to verify that the student implemented the Playlist class using
a circular doubly-linked list.

Style and documentation:
Comments:
	Good commenting!
	Good coding style!
	<b>Warning:</b> file header comments missing some information
	<b>Warning:</b> some lines are longer than 80 characters
	<b>Warning:</b> place file header comments before import statements
	<b>Warning:</b> avoid excessive vertical whitespace
	<b>Warning:</b> some class/method header comments are missing some information