add the concept of a preview date
add a filter that redirects to the preview page for all urls
add a preview page (placeholder)
redirect from the preview page when not in preview

This is to catch people who either bookmark the preview page or get there via a search engine
split the main layout apart into smaller sections so that it can be reused
add a coming soon page
add the concept of a closed conference, and make sure all the redirects happen
Add null checks
review feedback
add the user's joined date to the details
Add some tests for the user controller
remove the default ids
remove the link to the speaker as it goes nowhere
style the session details page
style the session delete confirmation page
style the edit session page
remove the create link as we don't support it
remove the vote count as it isn't on the session model
format the submitted date
return the status code, not an int