Changes

Summary

1. Update mappings and forge (details)

Commit f31538b2ab58bcda4df2f6024e1288183098a84f by bernhard.bonigl Update mappings and forge
	src/main/java/slimeknights/mantle/client/book/data/PageData.java (diff)
	src/main/java/slimeknights/mantle/client/book/data/content/ContentSmelting.java (diff)
	src/main/java/slimeknights/mantle/client/gui/book/element/ElementStructure.java (diff)
	src/main/java/slimeknights/mantle/client/gui/book/GuiBook.java (diff)
	build.properties (diff)
	src/main/java/slimeknights/mantle/inventory/BaseContainer.java (diff)
	src/main/java/slimeknights/mantle/client/book/data/element/ItemStackData.java (diff)
	src/main/java/slimeknights/mantle/tileentity/TileInventory.java (diff)