* master: (33 commits)
  Include integration tests in CE/EE testing documentation
  41054-Disallow creation of new Kubernetes integrations
  Resolve "Resizable file list and commit panel"
  Make tooltip placement bottom by default as per design guidelines
  Fix groups list icon, timestamp alignment and row height
  Avoid leaving a push event empty if payload cannot be created
  Use heredoc for long strings so it's easier to read
  Simplify metrics fetching for closed/merged MRs
  Better English
  Fix method lookup
  Use a background migration for issues.closed_at
  Handle Gitaly aborted merge due to branch update
  Fix API endpoints to edit wiki pages where project belongs to a group
  Fixes spec failures due to not returning metrics for MRs other than closed/merged
  Cache merged and closed events data in merge_request_metrics table
  Update test to remove carent icon check
  Update styles to fix SVG caret alignment
  Update selector to test SVG icon name
  Use SVG sprite icons
  Add support for max_count option to Git::Repository#count_commits
  ...