anchor.diff:  1,all of them
   1,AGPL3
   5,AGPL
  +3,ACE
  +1,3-clause BSD
   1,3-Clause BSD
  -1,3-clause BSD
  
positive.code: 1,MIT, Apache License v2.0
  2,MIT License
  1,MIT (http://opensource.org/licenses/MIT)
  1599,MIT
  2,mit
  3,LGPLv3
  1,LGPLv2.1+
  
negative.code: 2,http://www.apache.org/licenses/LICENSE-2.0.txt
  1,GSLv3
  1,GPLv3+
  7,GPLv3
  2,GPLv2
  5,GPL3
  15,GPL-3
  16,GPL-2
  1,GPL v3.0
  1,GPL Lv.3
  12,GPL
  1,GNU LGPL v3
  1,GNU Lesser General Public License, Version 3.0
  1,GNU GPLv3 and AGPLv3
  1,GNU GPL
  