UserProfile updates to show certificates for Fall

@sefk or @jbau please.

* Updates to accounts view, profile template, and additional models
  backported from master to allow Fall2012 students to retrieve their
  course certifications.
  (fixes #2065)

I believe this is the minimal set of changes necessary to enable certificate viewing in user profiles for Fall2012 students. This also fixes the Anonymous Profile viewing problem @jbau noticed for Fall2012 sites (but not sites on master, which I'll fix seperately.)