Issue #2249723 by andrei.dincu: Remove xmlsitemap_engines.test file
Issue #2249723 by andrei.dincu: Remove attribute uuid from XmlSitemap entity
Issue #2249723 by andrei.dincu: Add information about xmlsitemap config entity in xmlsitemap.schema.yml as it is specified at https://drupal.org/node/2256679
Issue #2249723 by andrei.dincu: Replace module_exists with D8 code and remove uri export from xmlsitemap.schema.yml file
Issue #2249723 by andrei.dincu: Transform stdClass to XmlSitemapInterface and port to D8 code in xmlsitemap.api.php file
Issue #2249723 by andrei.dincu: Start porting xmlsitemap_user submodule by
inserting all hooks into xmlsitemap.module file
Issue #2249723 by andrei.dincu: Remove hook_menu() from xmlsitemap_engines_test.module
Issue #2249723 by andrei.dincu: Add type checking in xmlsitemap.module for user hooks
Issue #2249723 by andrei.dincu: Replace [] with Drupal wrapper in xmlsitemap.pages.inc, XmlSitemapEnginesTestController and xmlsitemap_engines_test.module
Issue #2249723 by andrei.dincu: Add row in xmlsitemap table when new user is created