Implement checkin search
Require permission in view to access checkin info
Deal with missing .organisation on SIMCardTicket
Update styling
fixup
Make highlight template tag case insensitive
Increase ids column
Merge branch 'ticket188' of https://github.com/DasIch/djep into ticket188
Actually search purchaser info
Use select_related in checkin search
Filter for purchase details
Merge pull request #204 from DasIch/ticket188

Fixes #188 -- Add view for info / sign-up desks