“Super 8” is now in theaters. The reviews — generally positive — have also started rolling in. (The Post’s Ann Hornaday calls it “a pop-culture nostalgia trip that feels as if it’s been beamed from a sweeter, more innocent time.”) To longtime fans of the J.J. Abrams oeuvre, this means it’s time to focus on a new “Super 8”-related matter: the attempt to find all the Easter eggs in the movie, i.e.