Airport type display
Delegate airport types to AirportTypeCollection class
Refactoring and adding Geographic path

Fixes #2 by adding GeographicPath and GeographicPathHtmlFormatter.
Refactoring and creating AirportTypeCollection to improve performance.
Merge pull request #1 from Bobboya/master

merge
Adding zoom to airport

Fixes #7
Adding CameraZoomer class to provide zooming to airport.
Adding a button in path list to trigger the zoom.
Adding Routes

Adding data and classes to represent airports destinations
Updating Cesium to latest version
Merge remote-tracking branch 'master/master' into louis

Updating to the newest version