Changes

• Feature: Added mmechanism to prevent outdated datastores and shares to be written
  
• Feature: Added support for allow custom server flag
  
• Feature: Added offline indicator
  
• Feature: Honor server flag to disable option to create multiple datastores
  
• Feature: Added QR Code to username / password and URL field
  
• Feature: Added colors for folders
  
• Bugfix: Import fails silently if an unsupported file is selected
  
• Bugfix: Export to path without permission fails with nice error now