Added a filter to the map activity and also added event markers
Fixed Concurrency issue on autoupdate of the map
Fixed Concurrency issue for filtering on the map
Async/await added to notification page refresh button. Entering the notification page does not query the server unless the user clicks the refresh button.
The mainmenu now waits until LoadLastEvents thread is completed before showing the layout.
Clicking on a marker now opens the detail page.
Added filter to notification list page
Merge branch 'master' of https://github.com/rockyhe/MojioTowingAlert