Decipher the writing on the wall

SPOILERS

In the end of Assassin’s Creed, there is a bunch of writing on the wall and The only thing I really noticed was the end of the Mayan calendar (13.0.0.0) and a heart shape looking thing. Does anyone know what this means and any of the other symbols and stuff?

Edit: Google is nice.
http://www.computerandvideogames.com/article.php?id=175552