Fix Concur recipes in TPS

[milesfrain]

We're using div id="app" in index.html, but TPS doesn't have access to this file, so runWidgetInDom "app" can't find what it needs.

try

We probably need to use a similar launch strategy as the Halogen and React recipes (see #198)

Also might be good for Concur to log an error to the console if runWidgetInDom can't find the element.

@gcsolaroli and @ajnsit for suggestions

[ajnsit]

Concur has runWidgetInSelector as well which can populate the widget directly in the body i.e. runWidgetInSelector "body". Is that enough?

[milesfrain]

That might be enough. Looks like we'll have to wait for the package set to incorporate runWidgetInSelector and then wait for TPS to incorporate the updated package set.