I, the copyright holder of this work, hereby publish it under the following licenses:
This file is licensed under the Creative Commons Attribution ShareAlike license, versions 2.0, 2.5, 3.0, 4.0 and any later version released by Creative Commons. You may select the version of your choice. In short: you are free to share and make derivative works of the file under the conditions that you appropriately attribute it, and that you distribute it only under a license identical to this one. Official license: 2.0, 2.5, 3.0, 4.0
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue