Limit thumbnail creation to one concurrent operation.
Use MKMapSnapshooter instead of MKMapView to get out of stutter city.
Properly display boolean, date and object values.
Detail view for Asset title and description.
Logout button everywhere.
Added a dummy launch image to have 568h support.
Show a dummy placeholder if no suitable thumbnail can be obtained.

1. Thumbnail generation failed (all black snapshot)
2. Excessive file size (> 1MB)
3. Depending on file type (not yet implemented)
Have a button to go to a demo Space.
Added dummy "about us" view controller.
Added button for changing locales (without function right now).