That's one heck of a commit you've got there...

I may have got a bit behind with version control. A lot behind, in fact. Maybe I'll go back and split this sometime - then again, I probably won't. But hey, at least it's here!

src/main/java/electroblob/wizardry/item/ItemWizardHandbook.java

@@ -1,13 +1,8 @@
 package electroblob.wizardry.item;
 
-import java.util.List;
-
-import javax.annotation.Nullable;
-
 import electroblob.wizardry.Wizardry;
 import electroblob.wizardry.WizardryGuiHandler;
 import electroblob.wizardry.registry.WizardryTabs;
-import net.minecraft.client.util.ITooltipFlag;
 import net.minecraft.entity.player.EntityPlayer;
 import net.minecraft.item.Item;
 import net.minecraft.item.ItemStack;
@@ -16,6 +11,9 @@ import net.minecraft.util.EnumActionResult;
 import net.minecraft.util.EnumHand;
 import net.minecraft.world.World;
 
+import javax.annotation.Nullable;
+import java.util.List;
+
 public class ItemWizardHandbook extends Item {
 
 	// Yep, I hardcoded my own name into the mod. Don't want people changing it now, do I?
@@ -28,7 +26,7 @@ public class ItemWizardHandbook extends Item {
 	}
 
 	@Override
-	public void addInformation(ItemStack stack, @Nullable World worldIn, List<String> tooltip, ITooltipFlag flagIn) {
+	public void addInformation(ItemStack stack, @Nullable World world, List<String> tooltip, net.minecraft.client.util.ITooltipFlag flag) {
 		tooltip.add(
 				"\u00A77" + net.minecraft.client.resources.I18n.format("item." + Wizardry.MODID + ":wizard_handbook.desc", AUTHOR));
 	}