###Image URL Specification
Simple url spec for supply image icons of varying resolutions sizes. The goal is to reduce the size of the JSON so we operate on conventions.
####The server's role
The server should respond to each variation of the URL. If it doesn't support a particular resolution is should simply return the closet approximation. The server should provide the base image name in the "image" key in the context for each item.
###The client's role
The client (mobile javascript) is responsible for loading the appropriate icons based on orientation, resolution, etc. In the interest of speed, the images should be downloaded on-demand and only when needed. Since both server and client agree on conventions, we can request different size images based on the spec outlined here.
####Image Naming Conventions