Added all_listings template.
Models should always link to the same page.
Add a notification for closed or sold listings.
Provides a default image for listings with no provided image.
Delinkified the rest of the fields.
Updated todo list.
Added lookout helper text.
Fleshed out the about page.
Added login link
Added piwik installation.
Added piwik configurations.
Added piwik tracking code.
Updated privacy policy text.