Rewrote all files
Merge remote-tracking branch 'origin/master'

Conflicts:
	src/main/java/com/yutan/yutanlib/YuTanLib.java
	src/main/java/com/yutan/yutanlib/core/items/CopperIngot.java
	src/main/java/com/yutan/yutanlib/core/items/SteelIngot.java
	src/main/java/com/yutan/yutanlib/core/items/TinIngot.java
	src/main/resources/mcmod.info