fb like/share changes noted in previous commit

- unfortunately it didn't work out. I would consider hard-coding
  the buttons but I'm not even sure that's possible anymore (they
  have implemented crazy cross-site checking in hidden iframes that
  get rendered when the plugin fires to "authenticate" the "app")
  but I will keep looking into it, just not today. I would really
  like to maintain our facebook integration that we have on the old
  website in this new interface, so yep. back to the drawing board.

Signed-off-by: William Rockwood <wrockwood@tadl.org>