1.3.1

Fixed

• pdfkmp-viewer: share did nothing on iPad. The iOS share action
  returned early on iPad instead of presenting the sheet. It now anchors
  UIActivityViewController's popover to the presenting view.
• pdfkmp-viewer: save gave no feedback on iOS. The save action wrote
  silently into the app's NSDocumentDirectory, which the Files app only
  shows when the host sets UIFileSharingEnabled and
  LSSupportsOpeningDocumentsInPlace. It now presents the system
  "Save to Files" picker (UIDocumentPickerViewController, export mode), so
  the user chooses the destination and no Info.plist keys are needed.