Add TODOs for other data manipulation/auto-creation/...-tasks

Add template and template tag for messages
Adapt success url of AK creation to point to detail page of created AK and show success message

exclude interest
exclude track

create form class
create template
configur urls
create submission view

Created filter to represent values using fontawesome icons
Added template tags (and corresponding templates) for category and tag lists and badges
Adapted existing view templates to use these tags
Fixed presentation of AK indicator

avoid clashes with python keyword

allow AK owners to be empty
infer AK wish from empty owner list
show wish status in Admin overview

Add dynamic title handling to base html
Add more information to submission overview
Move AK list to own file for use in other pages
Add detail view for AK
Add views with AK overview list as well as filtered lists (by type and tag)
Add corresponding German translations

This message is used by the mixin to find the corresponding event for a slug

Create mixin (FilterByEventSlugMixin) to handle even slug parsing in generic views
Add submission url config
Include submission urls in central url config
Add index view for submissions

Create html template
Add translation
Add property for easy access to list of AK owners to AK model

Create base.html
Add common template folder to settings

Resolve first partial task of #7

Basic design

See merge request kif/akplanning!1

After this commit, only the top level static files folder is ignored, while apps may contain static files that can then be collected by django

Add suitable libraries to requirements
Load these apps and adapt their basic settings

place in event not required
track in AK not required
building and properties in room not required

add model class for availabilities
register availability model for admin view
add availability migration
add German translations for availability model
remove availability modelling TODOs