Simplify map

[anselmbradford]

Per user feedback the map should be simplified to be shown/hidden instead of having a small/large size. This issue would incorporate #792

[pmackay]

Have you considered a layout a bit more like Google Maps where the map is more vertical and larger, and the list of places is rendered vertically on the left or right? That could give a more equal ratio of rectangle map size.

[anselmbradford]

I have an almost complete branch for this that has the small/large size button replaced with show/hide and when the map is showing it fills all the available area on the right (which also simplifies the map to use only one pin size). I just need to do further testing on different browsers and mobile. The list on the left is an interesting idea. That would essentially be a separate view as a lot of content blocks would need to move around at different screen sizes, etc. That part of it would be a much bigger task, but perhaps my upcoming branch is a first step toward something implementators could adopt to their needs.