closure/compiler.jar
  The closure compiler, v20170423, by Google.
  Apache v2.0 license.
  https://github.com/google/closure-compiler

closure/goog
  The closure library (modified), by Google.
  Apache v2.0 license.
  https://github.com/google/closure-library

closure/deps
  The closure dependency generator, part of the closure library, by Google.
  Apache v2.0 license.
  https://github.com/google/closure-library

gjslint/closure_linter-2.3.13
  The closure JavaScript linter, by Google.
  Apache v2.0 license.
  https://code.google.com/p/closure-linter/

gjslint/python-gflags-2.0
  A python command-line parser, needed by the closure linter, by Google.
  BSD-style license (3-clause).
  https://code.google.com/p/python-gflags/

jsdoc
  JSDoc 3 documentation generator (modified), by Michael Matthews.
  Apache v2.0 license.
  https://github.com/jsdoc3/jsdoc