Hide the simpleMap table via css

Created by: slifty

The simpleMap table is currently hidden by the javascript; this has two big issues:

First, the table is visible for a moment while the map renders. Second, if the user wanted to render the table for any reason, this prevents that.

To solve both of these problems we should have the table hidden via simpleMaps.css. This way users can override as desired (and it's hidden right away otherwise)