* changes:
  Add spans and classes to pieform element pre- and post-html
  Avoid cross-domain ajax requests from user subdomains (bug #1006634)
  Use subdomain URLs on Settings and Edit view pages (bug #1006634)
  Allow html to appear directly after an element in pieforms
  Allow login redirect to subdomains (bug #1006634)
  Add a function to get the servername from the request
  Always use wwwroot to generate the cookie domain (bug #1006634)
  Add clean URL "User subdomain" option (bug #1006634)