Update copyright/copyleft headers.

src/main/java/vazkii/botania/api/BotaniaAPI.java

@@ -3,9 +3,8 @@
  * part of the Botania Mod. Get the Source Code in github:
  * https://github.com/Vazkii/Botania
  * 
- * Botania is Open Source and distributed under a
- * Creative Commons Attribution-NonCommercial-ShareAlike 3.0 License
- * (http://creativecommons.org/licenses/by-nc-sa/3.0/deed.en_GB)
+ * Botania is Open Source and distributed under the
+ * Botania License: http://botaniamod.net/license.php
  * 
  * File Created @ [Jan 14, 2014, 6:15:28 PM (GMT)]
  */