Changes

• Feature: Nginx upgrade of docker image to support browser push
  
• Security: Switching to yarn
  
• Security: Removed old "jsonwebtoken" lib with security vulnerability
  
• Security: No cache browser instruction for forms with passwords
  
• Security: Added "--pull" docker instruction to always pull newest image
  
• Security: Device fingerprint is sent now with every request
  
• Bugfix: Fix yubikey login
  
• Bugfix: Fix password and email change handling of errors
  
• Bugfix: Fix release deployment to incorrect artifactory folder