IOS App 3.3

Auto Disappearing  Notifications in Foreground
Popover showing MQTT Session info by tapping on LED
Location Service on/off instead of exit button -- if location service
is off, app stopps in background
Connection close/reconnect button
Auto Disconnect in Background changed from 5 to 8 seconds ---
crashes/loops?
500m distance indicator around last published location
closes #111
closes #112