Cleaned up code, updated copyright at long last.

common/src/main/java/com/lishid/openinv/util/Function.java

@@ -1,8 +1,24 @@
+/*
+ * Copyright (C) 2011-2018 lishid. All rights reserved.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
 package com.lishid.openinv.util;
 
 /**
  * Abstraction for some simple cache calls.
- * 
+ *
  * @author Jikoo
  */
 public abstract class Function<V> {