This PR is part of some work carried out during December 2020.
Details of collaborative links on page are add to sitemap. Use in the client to show backlinks on a page.
A small change in cookie serving when used with localhost and its subdomains.
Where a site does not yet have a favicon, use the default favicon. This resolves an issue that Ward spotted with newly created wiki not working correctly. This issue was also show during the 30 Dec 2020 hangout, by @andrewshell
The changes in this PR are intended for use along with the changes in fedwiki/wiki-client#270
This PR is part of some work carried out during December 2020.
The changes in this PR are intended for use along with the changes in fedwiki/wiki-client#270