A quick improvement to the first/last class handling to allow for a post to have both classes if it's the only one in the list.
A quick improvement to the first/last class handling to allow for a post to have both classes if it's the only one in the list.

git-svn-id: 71ac0145df79e26b076d62e50011532b62ebd840@79 9841916d-1f77-4d57-ab71-7f08b6dd89e2

chrismeller/chris-mkii,chrismeller/chris-mkii