anchor.diff:  2,http://www.apache.org/licenses/LICENSE-2.0.txt
   1,GSLv3
   1,GPLv3+
  -4,GPLv3
  +5,GPLv3
   2,GPLv2
   5,GPL3
   12,GPL-3
  
positive.code: 1,Copyright (c) Rajarshi Das. All rights reserved
  5,Copyright (c) Joe McIlvain. All rights reserved 
  1,Commercial
  1,CC0
  1,cc-zero
  1,CC-BY-SA
  1,CC-BY-NC-SA 3.0
  
negative.code: 1,Apache License, v2.0
  4,Apache License Version 2.0
  1,Apache License version 2
  5,Apache License V2.0
  7,Apache License 2.0
  7,Apache License (2.0)
  1,Apache Licence 2.0
  