LICENSE:                                                                 
Copyright (c) 2017, Erwin Coumans                                        
Google Inc.                                                              
All rights reserved.                                                     
                                                                         
Redistribution and use in source and binary forms, with or without       
modification, are permitted provided that the following conditions are   
met:                                                                     
                                                                         
1. Redistributions or derived work must retain this copyright notice,    
   this list of conditions and the following disclaimer.                 
                                                                         
2. Redistributions in binary form must reproduce the above copyright     
   notice, this list of conditions and the following disclaimer in the   
   documentation and/or other materials provided with the distribution.  
                                                                         
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS  
IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR   
PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR        
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,    
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,      
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR       
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF   
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING     
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS       
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.             