FEATURE: Add topic invitation support to Bulk Invite
move profile_background from User to UserProfile
We shouldn't have to redeclare tab panels in the category edit menu
BUGFIX: edit history on wiki posts should be visible
Refactor methods post feedback
Merge pull request #2474 from techAPJ/add-topic-id-to-bulk-invite

FEATURE: Add topic invitation support to Bulk Invite
TRIVIAL: code formatting
FIX: show search filter when invites are greater than ten
Merge pull request #2476 from techAPJ/suppress-invite-search

FIX: show search filter only when invites are greater than or equal to ten
Trust level 3 measurements redone
OOOPS: I CAN'T CODE (:fired:)
better copy for email errors