Completely redesigned UI:
- only 2 views: Details (with map) and Tags
- no more Tabs: the toolbar is now on the bottom with a button to change the views
- redesigned Details View
- redesigned Extension
- improved memory usage
- improved support to Split View and Slide Over (on iPad)
- choose another image by touching it in the horizontal scroll view (iPad and Mac)
- tap to enlarge the current image
