A way to include an Adaptive Map, based on [Brad Frost’s Adaptive Maps pattern](http://bradfrostweb.com/blog/post/adaptive-maps/), without requiring an external JavaScript library.
The basic premise is that we should be using mobile devices’ far better-suited mapping applications rather than attempting to frame maps in our own websites. Users w/ larger screens will get a full map in an iframe.
No styling has been provided, but the link and map are wrapped in `div.adaptive-map`.
