GraniteTeam/Granite — pull request #50 by mossyblog (2014-10-18 02:25:10+00:00)
Title: - Added pages NBTTagging to ItemStack.

I'm not sure how you're planning on handling NBT tags in the future but for the interim this will enable devs to inject "pages" into Book(s). I've also included a soft check to ensure you don't try and inject useless tags into an item that doesn't derive a book type (its not my finest hour of code).