Add new property to model to simply access planned durations of AK

Add contact email address to event model
Show email link in footer
Fix missing event reference in AKDetailView

The subfolder is not under version control, however, you can place another version controlled source here if needed

prevent jetbrains IDE from omitting this import

associate AKTrack with an Event
associate AKCategory with an Event
restrict AK requirements to those associated with the same event
restrict AK categories to those associated with the same event

truncate before numbering
remove debug print statements

add default slot size to Event model
set initial form value to event deafult slot size

if ': ' cut off starting there
if ' - ' cut off starting there
if ' (' cut off starting there
cut to appropriate length

Only change appearance of owner field for normal submission but not for wishes (since they don't have owners)

Submission form

See merge request !4

Add base url field to event
Generate Wiki link from title and base url