Release 0.5.0

Highlights

• First beta release for Windows!
  • only Windows 10 Pro/Enterprise, build 1803 or later is currently supported
  • see Installing Multipass on Windows for more information
• Switched to Semantic Versioning

Bugs fixed

• Fix daemon hangs when suspending a suspended instance. (#559)
• Persistify deleted state and load it on daemon startup. (#536)