Auto sitemap is broken for subdomains #17
Description
Some of the changes to the localpath-to-uri logic appear to have broken subdomains. When using the "Automatically list all blogs in sitemap" setting for the SiteMap plugin, all of the blogs that are on their own subdomain just use the current domain as their URL, rather than the correct blog subdomain.
The fix for this is probably to just do away with that function - take all the brains our of it and just make the URL a configuration setting. Maybe make the blog creation do a best-guess at the appropriate URL, but save that as a config and allow it to be manually over-ridden, then just make the config authoritative. There are just too many possibilities and too many cases that the logic gets wrong.