ECMS-5403 Wrong sitemap content after changing the frequency of SEO
Problem Analysis:
 - when saving SEO data, portalRequestContext.getRequestURI() return current URI (for example: http://localhost:8080/portal/acme), not real URI (http://localhost:8080/portal/acme/overview)
 - Bug happens when going to a site having default page but we not enter default page on URL
Solution:
 - Rebuild URL by portalRequestContext.createURL