.. Copyright (C) Dave Parillo. Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with Invariant Sections being Forward, Prefaces, and Contributor List, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled "GNU Free Documentation License". Copyright Notice ================ | Copyright (C) Dave Parillo. Permission is granted to copy, distribute | and/or modify this document under the terms of the GNU Free Documentation | License, Version 1.3 or any later version published by the Free Software | Foundation; with Invariant Sections being Forward, Prefaces, and | no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is | included in the section entitled :doc:`GNU Free Documentation License `.