[greg and vivian] remove estimote dependencies from NotifyDemoActivity; change gradle file
[greg and vivian] remove Estimote from DistanceBeaconActivity
[greg and vivian] make major and minor extras for NotifyDemoActivity intent; IBeacon no longer serializable
[greg and vivian] make major and minor extras for DistanceBeaconActivity intent
[greg and vivian] change package name in distance_view.xml
[greg and vivian] run NotifyDemoActivity status updates on UI thread
[greg and vivian] fix dot visibility in DistanceBeaconActivity