Maps route

[tomwayson]

After #8

I'd like to set up a new /search route that would search ArcGIS Online for webmaps and the results as a list of route links to the map page.

The search route should pull the search term from query string parameters. For now, just show the top 10 results (no need to deal w/ paging, sorting, etc at first)

[tomwayson]

Actually, instead of a /search route, what is needed is to replace the /map route w/ a new /maps route:

/maps - a search box and list of search results, each links to /maps/:itemId /maps/:itemId - shows the map, use the current map route