Working gulpfile.js, LICENSE.txt, and updated README.md

- Working `gulpfile.js` which can be run with the gulp command.
- Updated `README.md` to reflect the changes made with the gulpfile.
- General cleanup of `README.md` so that it looks a little nicer.
- Added `LICENSE.txt` because I figured we should have one since this is a public repo.
- License is [CC-BY-NC-SA 4.0](https://creativecommons.org/licenses/by-nc-sa/4.0/)
- Changed the hello world template/example we have to make use of browserify and the new Gulp build process.