* Update dependencies
* Remove monkey-hot-loader
* Use webpack-merge instead of util/mergeWithConcat()
* Fix: copyglobs plugin `after-emit` is bound twice
* NoErrorsPlugin() is deprecated in favor of NoEmitOnErrorsPlugin()
* webpack-dev-middleware should use same publicPath as compiler
* webpack-hot-middleware/client should be prepended to entries
* Browser should refresh when HMR fails
* Bootstrap package.json has correct main property
Sometime between alpha 2 and 3, package.json was pointing to nonexistent
file, so we referenced file manually in our repo. Underlying issue was
fixed by alpha 4, so we no longer have to specify full path to file.
- Relocate webpack stuff to assets/build
- Switch all js to airbnb code style
- Update webpack to v2.0 (beta)
- Update all other dependencies
- Assets manifest uses relative path as key [1]
- Code should be compatible with Node 4.5.0
- All dependencies have been updated
[1]: Previously the assets manifest would use the basename of a file path as
its key when looking up a cachebusted file. This was to be consistent with
Sage 8. This change makes it so that the relative path is used instead.
To clarify, review the following example.
Before:
```
{
"main.js": "scripts/main_5f4bfc9a9f82291c6dea.js",
"main.css": "styles/main_5f4bfc9a9f82291c6dea.css",
"customizer.js": "scripts/customizer_5f4bfc9a9f82291c6dea.js"
}
```
After:
```
{
"scripts/main.js":"scripts/main_5f4bfc9a9f82291c6dea.js",
"styles/main.css":"styles/main_5f4bfc9a9f82291c6dea.css",
"scripts/customizer.js":"scripts/customizer_5f4bfc9a9f82291c6dea.js"
}
```
