Fixed sitemap page URLs in sitemap index
Fixes #156, fixes #220, custom AuthorizeAttribute implementations that are sealed or do not have a public default constructor fail to authorize.
Merge pull request #222 from uhaciogullari/sitemap-part-url-fix

Sitemap page links are broken when application is hosted as sub application
Merge branch 'authorize-attribute-acl-module-rework' into dev
Added information to upgrade existing DI configurations to DI readme files.
Updated description of MvcSiteMapProvider NuGet package to inform users that it is obsolete.