Copyright (c) 2011 Sorin Nistor. All rights reserved. This software is provided 'as-is', 
without any express or implied warranty. In no event will the authors be held liable for 
any damages arising from the use of this software. Permission is granted to anyone to 
use this software for any purpose, including commercial applications, and to alter it 
and redistribute it freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not claim that you 
   wrote the original software. If you use this software in a product, an acknowledgment 
   in the product documentation would be appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be misrepresented 
   as being the original software.
3. This notice may not be removed or altered from any source distribution.