Changelog: 🚀

## New features

### Comment syntax is now opt-in

By default you'll be writing responsive hints, using no-comment
syntax. Like this:

```css
.text {
  padding: 10px | 20px | x | 30px;
}
```

If you don't want to use non-standard syntax you need to set 'comments'
option to 'true'. After that you can write you hints like this:

```css
.text {
  padding: 10px /* | 20px | x | 30px | */;
}
```