Code cleanup

Added missing this, annotations, etc.

src/main/java/appeng/container/AEBaseContainer.java

@@ -1033,7 +1033,7 @@ public abstract class AEBaseContainer extends Container
 
 	protected ItemStack transferStackToContainer( final ItemStack input )
 	{
-		return shiftStoreItem( input );
+		return this.shiftStoreItem( input );
 	}
 
 	private ItemStack shiftStoreItem( final ItemStack input )

src/main/java/appeng/container/slot/OptionalSlotFake.java

@@ -80,11 +80,13 @@ public class OptionalSlotFake extends SlotFake implements IOptionalSlot
 		this.renderDisabled = renderDisabled;
 	}
 
+	@Override
 	public int getSourceX()
 	{
 		return this.srcX;
 	}
 
+	@Override
 	public int getSourceY()
 	{
 		return this.srcY;