added a TODO; we define dedupe() which seems exactly like _.uniq().
added a TODO; we define dedupe() which seems exactly like _.uniq().

mozilla/openbadger,kayaelle/msol-badger,mozilla/openbadger,bdgio/msol-site,bdgio/msol-site,kayaelle/msol-badger,bdgio/msol-site,kayaelle/msol-badger