updated provisioning profiles
added device object model
populate with daults
populate device method
api calls for registering and updating devices
pass off deviceHash if found or created
register for remote notifications, send device token to backend
cache device token when received
added firstSession boolean
set firstSession boolean based of deviceHash value
vertically stretched blurry image for iPhone 5 height
notification for dismissing welcome view controller
new view controller for welcome tutorial
update device method with completion handler
always send device token to backend when received from apple
show welcome view controller if new user