v1.5.0 Alpha1

Major changes

• Add support for auto-caching #829
  Pass the --auto-cache <directory> argument to west update.
  Run west update --help for more details.

Other changes

• Allow combining --name-cache and --path-cache for west update #831
• Document default revision value in the manifest schema #820 #822

Bug fixes

• Allow empty or missing manifest projects list #823 #825
• Make manifest.group-filter list order deterministic. #824 #827