                            zlib license                                
                                                                            
 Copyright (C) 2018, Benjamin Rosseaux (benjamin@rosseaux.de)          
                                                                            
 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 acknowledgement 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. 

