Update location of the infographic.

https://github.com/madewithbytes/us_ignite/issues/278
Update ``communities`` navigation menu.

https://github.com/madewithbytes/us_ignite/issues/300
Add missing encoding to form.

https://github.com/madewithbytes/us_ignite/issues/298

The missing encoding would prevent the file to be attached
as part of the POST request.
Separate template map.
Show users, organizations, events and hub in the map.