Search events by location

[adborden]

As a user, I want to include a location in my search query so that I can select events that are local to me.

For now, location will be manual. The user can input a location into a search field. We should integrate with some service (Google Maps?) to identify the lat, lon and then use that to query events by lat, lon.

Acceptance criteria

• I can enter my location in a text field as the point of reference
• I can select a radius 1 mile, 5 miles, 15 miles, 40 miles, unbound