Only find payment codes from current event
Merge pull request #392 from ZeusWPI/fix/392/csv-upload-only-find-paymentcods-of-current-event

CSV upload finds events from other event
add ics export view
add subtle calender icon next to event name
Merge pull request #395 from ZeusWPI/feature/ics-export

Add ics export
Merge branch 'master' into fix/390/upload-payment-emails