Deprecations in dependencies (grunt tools)

I've tried to `npm install` and encountered the warnings about deprecations of two grunt tools:

```
npm WARN deprecated grunt-regarde@0.1.1: Deprecated in favor of grunt-contrib-watch which now have Livereload support built-in.
npm WARN deprecated grunt-contrib-livereload@0.1.1: Deprecated in favor of grunt-contrib-watch which now have Livereload support built-in.
```

Start by running npm install and inspect the dependency declarations for grunt-regarde and grunt-contrib-livereload. Done means the deprecated grunt warnings are no longer reported while the project's existing Grunt workflow still works; no specific source file or test is named in the issue.

Written by the indexing model from the issue text.