use limit & offset for pagination of group members
checking actual values in the spec, not just counts
Add new private message button on topics list

That'll teach me to wildly refactor things.
Add test for email with inline reply
Better error message output
Make suspect report use <= 1 instead of = 0
FIX: don't error out when updating a topic with no changes
minor copyedit
suppress long category names on mobile
bit shorter max width on mobile categories
FIX: exportUsers action was deleted, so user export was failing
Merge pull request #3014 from techAPJ/patch-3

FIX: exportUsers action was deleted, so user export was failing
FIX: editing the 1st post of a private message wasn't working
FIX: Editing a category definition topic was clearing its permissions
FEATURE: use actual time in preference > email notifications' instruction
FEATURE: 'delete user' button in the user card in the admin section
FIX: Clicking avatars broke for non-admins
FIX: Selecting one user in admin would select them all
FIX: Better protection for invites scrolling
a few very minor visual tweaks