Added Stanford level 17 hints.
Used these two awk scripts to ensure that ids didn't overlap with level 3 hints:
 cat commentTxt.tsv | awk 'BEGIN { FS = "\t" } ; {printf ("%d\t%s\n", $1 + 20, $2)}' >> stanford-hint-messages.tsv
 cat xmlComments.tsv | awk 'BEGIN { FS = "\t" } ; {printf ("%d\t%d\n", $1, $2 + 20)}' >> stanford-hint-ids.tsv
As before, removed level 0 (correct program) and level indicating no blocks provided (12 -> 32).