Merge branch 'label-row-scb' into 'master'

Resolve CE/EE diffs in label row

Closes gitlab-ee#10493

See merge request gitlab-org/gitlab-ce!28551

app/views/shared/_label_row.html.haml

@@ -22,3 +22,4 @@
         ·
         %li.label-link-item.priority-badge.js-priority-badge.inline.prepend-left-10
           .label-badge.label-badge-blue= _('Prioritized label')
+      = render_if_exists 'shared/label_row_epics_link', label: label