anchor.diff:  1,CC-BY-NC-SA 3.0
   8,CC BY-NC-SA 3.0
   1,BSD-3-clause
  +1,BSD-2-Clause
   8,BSD 3-Clause
   3,BSD 2-Clause
   28,BSD
  
positive.code: 7,Apache License 2.0
  7,Apache License (2.0)
  1,Apache Licence 2.0
  46,Apache 2.0
  3,Apache 2
  1,APACHE
  8,Apache
  1,all of them
  1,AGPL3
  5,AGPL
  
negative.code: 2,http://www.apache.org/licenses/LICENSE-2.0.txt
  1,GSLv3
  1,GPLv3+
  6,GPLv3
  2,GPLv2
  5,GPL3
  14,GPL-3
  16,GPL-2
  1,GPL v3.0
  1,GPL Lv.3
  12,GPL
  1,GNU Lesser General Public License, Version 3.0
  1,GNU GPLv3 and AGPLv3
  1,GNU GPL
  