Modified readme
Cleaned up BubbleButton.
Partially cleaned uo SpeedDataSource.cs
Minor cleanup of MainPage
Cleaned up AlertPopup.xaml.cs
Cleaned up AlertPopup and its dependencies.
Formatted MainPage.xaml
Replaced the obsolete Microsoft.Phone.Controls namespace with Microsoft.Phone.Maps.
Cleaned up the About page.
Minor cleanup of MainPage.
Changed the type of some settings.
Extracted the speed graph to a control.
Extracted the direction display into a control.
Renamed About to AboutPage.
Created a Controls folder and sorted files.
Removed unused resources and marked some files as new.
The app bar is now clean of references to code-behind. Added a dependency on the BindableAppBar NuGet package.
Minor clean-up.
Extracted the speed display into a control and fixed issues with the speed.
Improved unit display.