XProc Tutorial License Agreement

This tutorial is provided 'as-is', without any express or 
implied warranty. In no event will the authors nor the company
they work for be held liable for any damages arising from the 
use of this tutorial.  This tutorial is covered under the
GNU Open Soure License Agreement.

Permission is granted to anyone to use this tutorial for 
any purpose, including commercial applications, and to 
alter it and redistribute it freely, subject to the 
following restrictions:

1. The origin of this tutorial must not be misrepresented; 
you must not claim that you wrote the original tutorial. 
If you use this tutorial in a product, an acknowledgment 
in the product documentation would be appreciated but is 
not required.

2. Altered tutorial versions must be plainly marked as such,
and must not be misrepresented as being the original tutorial.

3. This notice may not be removed or altered from any tutorial
distribution.