Show category badge on 404 page topics
Add group names to user export csv
making topic/post selection left border stronger
Merge pull request #2762 from techAPJ/patch-1

Show category badge on 404 page topics
Merge pull request #2763 from techAPJ/patch-3

Add group names to user export csv
Merge pull request #2764 from awesomerobot/master

making topic/post selection left border stronger