Merge remote-tracking branch 'upstream/master' into fix-git-hooks-when-creating-file

* upstream/master: (130 commits)
  Fix: Guest sees some repository details and gets 404
  Update commits.scss
  updated styling commit SHA on branches page + added to changelog
  change build list height to show 6,5 builds + improve padding of list, with first/last child selectors
  Ignore builds directory from eslint
  Add changelog entry
  Document multiple repository storage paths
  Allow multiple repository storage shards to be enabled, and automatically round-robin between them
  Cleaned up global namespace JS
  Add tip for using Chrome to run and debug teaspoon tests.
  Add CHANGELOG entry file
  Add jquery.timeago.js to application.js
  Update match-regex to fix filename convention
  Move jquery.timeago to vendor directory
  Change a bunch of doc links to either relative or https://docs.gitlab.com.
  Show log corresponding to env in admin/logs
  Remove g from svg colors
  Add new icon for skipped builds; show created state in mini graph
  Clarify the author field for the changelog documentation
  DRY up the specs for bin/changelog
  ...