#201644 by jurgenhaas, wayland76, Freso. Fixed excessive memory usage by generating site map from database table instead of array.

This commit includes Views style plug-ins for both regular site maps and the Google News extension.

Sponsored by EmpowHer.com - Strong Women Transforming Health

#257698 by greggles. Use CAST in joins to url_alias table so that it can be joined on the src index instead of the src column.

#198173 by Liam McDermott. Query to populate the XML Sitemap table could crash the database server when there were large numbers of URL aliases. Split the URL alias into a separate query.

#215817 by jcnventura. Google sometimes indexes its own verification link and reports errors in the HTML. Made link return proper HTML.

#253786 Fixed table alias for term_data. Wrong alias caused private forums to be included in the site map.