added param to make lollipop scale with carbs

@jebeck or @nicolashery Small change to make add param to make lollipop scale with carbs
Good question @jebeck. I'm not entirely sure, but if you look at the last part of that link to the docs, it does say that it's "fine" if synchronization is not the goal. In our case, are we trying to keep in sync what's in the URL query params with the local state of this `PatientData` component? It seems to me that no, do correct me if I'm wrong. In that case I guess it's ok to access the `this.props.queryParams` in `getInitialState()`...