* Provide instructions on GH Pages deploy

* Add docs for GH Pages deployment

* Prevent incorrect paths in file-loader

* Minor message tweaks

* Update README.md

* Fix relative paths

* Don't assume the project is hosted at the root
* Require package.json in webpack.config.prod.js and use homepage if set; otherwise use '/'

* Fix package.json path and add sample package.json for tests

* Update publicPath to use relative path portion of URL defined in homepage

* Update successful bundle generation message

* Show bundle generation success message based on presence of homepage in package.json

This ensures errors are not tolerated.
Otherwise, Webpack just builds an empty bundle.