* master: (21 commits)
  Move `Group -> Members` to top-level, fix missing sub-nav for Subgroups
  Left align logo; increase max width of title
  Add newline to end of frontend.md.
  Clone nested objects from default data. Checks if key is present before accessing it
  Update CHANGELOG.md for 8.17.1
  Document use of AirBnb js styleguide and eslint.
  Don't allow a project to be shared with an ancestor of the group it is in
  Fix access to projects shared with a nested group
  Ignore builds dir when run rubocop check
  Remove hidden-xs classes from last columns in environments and pipelines table. Transform pipelines table css to match structure of pipelines table Make environments table overflow
  Use exceptions for MergeService error handling
  Clarify when to create EE compatibility MR in code review process
  New runner API returns 204
  Backport new behavior to CI API
  Backport API to V3
  Update documentation
  Return 204 for delete endpoints
  API project create: Make name or path required
  Only create unmergeable todos once
  Put back the new project button
  ...