Return new CheckinsCollection instead of returning constructor
Refactor foursquare/views/checkins
Refactor Api functions to use promises
Add styles for #map
Refactor getPartial to be getTemplate
Refactor getCheckins in foursquare_controller
Add FoursquareApi function in UserSchema methods
Add #content element
Add route for return user's foursquare checkins
Create checkin view
Create foursquare map view