Responsive apps

[semicolin]

I have built a responsive app that scales to the size of the viewport. It does not scale correctly when embedded in Cerner because this library assumes that the app has a fixed height and attempts to scale the iframe (on the cerner side) to the size of its content (my app).

This library allows me to define a custom height calculation function, but this does not help because my app has no way of knowing how much space is available in the viewport. I do not want to leave unused vertical space, and I do not want the user to have to scroll to see all of my app. Please add an alternative height calculation mode that scales the iframe to fill all of the available space, so my app's content can be scaled appropriately.