Issue #2008 - Add jshint
Issue #2008 - Fix lint errors for src/api.js
Issue #2008 - Fix lint errors for src/bidi.js
Issue #2008 - Fix lint errors for src/canvas.js
Issue #2008 - Fix lint errors for src/colorspace.js
Issue #2008 - Fix lint errors for src/core.js
Issue #2008 - Fix lint errors for src/crypto.js
Issue #2008 - Fix lint errors for src/evaluator.js
Issue #2008 - Fix lint errors for src/fonts.js
Issue #2008 - Fix lint errors for src/function.js
Issue #2008 - Fix lint errors for src/image.js
Issue #2008 - Fix lint errors for src/jbig2.js
Issue #2008 - Fix lint errors for src/jpx.js
Issue #2008 - Fix lint errors for src/metadata.js
Issue #2008 - Fix lint errors for src/obj.js
Issue #2008 - Fix lint errors for src/parser.js
Issue #2008 - Fix lint errors for src/pattern.js
Issue #2008 - Fix lint errors for src/stream.js
Issue #2008 - Fix lint errors for src/util.js
Issue #2008 - Fix lint errors for src/utils/fonts_utils.js