Admins can see specific availabilties with map

https://trello.com/c/9FDzOkVv/8-as-an-admin-i-can-see-my-active-schedule-calendar-confirmed-pickups-for-each-with-maps

![charitymaps](https://cloud.githubusercontent.com/assets/8646429/5149631/cdfb85d4-7198-11e4-9937-b537f65278c0.gif)

This is the same as line 24 @availability = find_availability_from_url
You could pull this out of the if else

Also you're building up a lot of instance variables that aren't being used for the admin view vs non admin.  You may want to think about using an admin namespace, since you're views for if admin is completely different than your non admin user's view.