Content template is currently created to allow migration process. However ideally we want to allow automating even 
creating this spreadsheet in favor of the new system. This means we need to allow either uploading a sitemap.xml file or 
importing it from a url. 
Once processed it populates the list of entries with urls.

During the import we can also outline whether to clear existing records (no by default).
If during import we are trying to add an existing url in the list it is skipped.
