Use relative layout and add some animation.
Allow background location tracking in iOS app.
Fix a bug where the wrong total run time was being saved. App name change. Cleanup.
Library changes, track runs, and cleanup.

- Switched to use the sqlite-net PCL and include SQLite Extensions.
- Add run position tracking and store that data locally
- Make headers blue and stationary background color white.
- Use a TableView instead of a listView for the history section and group runs by day.