implemented map view based on nearby users
add error checking for required services to HomeViewController
update the map view with some annotation image views and calculation for average coordinates
continue to resolve background notification issue
update table view with beacon information
revise homeviewcontroller and profileviewcontroller to load images asynchronously
update home view controller to address region monitoring, syncronous reqeusts, and region notifications
turn on notifications in app delegate
resolve issue with region notification in background mode
revised the app delegate class to better handle background processing, updated the home view controller to receive notifcations from the app delegate