[ticket/9649] Display information on index for moderators on unapproved posts

PHPBB3-9649
Merge pull request #1550 from nickvergessen/ticket/9649

[ticket/9649] Display information on index for moderators on unapproved posts
Merge branch 'develop' into feature/revisions

* develop:
  [ticket/9649] Display information on index for moderators on unapproved posts