* upstream/master: (74 commits)
  Fix notes type created from import
  Fix Auto DevOps banner feature flag
  Fix static analysis.
  Fix karma test
  Migrate Gitlab::Git::Repository#add_tag to Gitaly
  Migrate Git::Repository#rm_tag to Gitaly
  Docs: Feature overview and use cases
  Add active states to nav bar counters
  copyedit - reorg headers
  Support custom attributes on users
  copyedit + last_updated
  Tweaked the first time contributor tooltip text
  add note on DNS propagation time
  add section "Add your custom domain to GitLab Pages settings"
  Document the usage of the Docker OverlayFS driver for every build
  Fixes data parameter not being sent in ajax request for jobs log
  Clear merge requests counter cache after merge
  Add support to migrate existing projects to Hashed Storage async
  Removes the target branch and only uses the source branch.
  Remove target ref switcher.
  ...