Superheroes

THIS VERSION IS INCOMPATIBLE WITH SUPERHEROESPLUSULTRA VERSIONS <= 1.5.2 This update replaces gained hero and lost hero events in the plugin with a changed hero event. This update also introduces the Fangs spell to the default Sorcerer config (I forgot to add it when I introduced this feature to the plugin) and also introduces a written book with a tutorial for Sorcerer when an user becomes sorcerer.