Fix a whole bunch of things.

 * Book code now uses clean, shiny Bukkit API rather than crappy NBT stuff.
 * The plugin now 1) has a plugin.yml file so it can be tested, and 2) loads properly.
 * The book has working pagination now (255 char limit, remember)
 * The book has a bit of something extra at the end, which you may or may not like
 * Sound effects now Should Work™, in theory, but they don't.