Possible to pull liveReloadBaseUrl from environment?

My dev machine is not the same as the machine I am using to test the app. I use full ip like `http://192.168.x.x:3000` to talk to the (rails) server. I am using the lightning fast ember-cli-deploy to do my development. I've run into an issue where the ember-cli-live-reload.js url is pointing to the rails server and not the ember server. I am aware that I can set the `liveReloadBaseUrl` in `.ember-cli` and make it work that way, but my peers might not have the same development environment as I do. So I cannot go hardcoding the baseUrl into the `.ember-cli` file.

Possible suggestions:
- Pull it from the environment where the `host` is already being set
- Configure it in the `ember-cli-build.js` like so:
```
...
emberCLILiveReload: {
baseUrl: process.env.ASSET_HOST || "localhost:4200"
}
...
```