Upgraded Handlebars to latest version.
Added notion of "places" on the client-side. Each time the user's location is updated, a new PlaceListView will also be updated with nearby places/venues from Foursquare. For now, the UI for the place list is super-ghetto and it can't be interacted with, but it's a start! Also, I've added the notion of a "defaultLocation" to the top-level view and I'm passing it as an argument to the constructors of each subview (e.g. MapView, GridView, PlaceListView) so they'll have something to immediate fallback on if the user's actual location isn't known.