Clean up gulpfile.
Clean up gulpfile.

babel/generator-babel-boilerplate,pdougall1/arduino-javascript,alex-wilmer/generator-babel-boilerplate,jasonblanchard/babel-library-boilerplate,babel/generator-babel-boilerplate,jasonblanchard/babel-library-boilerplate,alex-wilmer/generator-babel-boilerplate,lanetix/generator-lanetix-script,babel/babel-library-boilerplate,michaelBenin/babel-library-boilerplate,kristianmandrup/babel-library-boilerplate,michaelBenin/babel-library-boilerplate,justengland/babel-library-boilerplate,justengland/babel-library-boilerplate,kristianmandrup/babel-library-boilerplate,pdougall1/arduino-javascript,babel/babel-library-boilerplate