Issue #1392710 by Dave Reid, antoniogr, johan gant: Ensure all modulename.xmlsitemap.inc files are loaded in xmlsitemap_settings_form().
Issue #1719184: Fixed spelling error in docs for xmlsitemap_get_path_alias().
Fixed the site_frontpage variable is always trusted to be an internal path, and drupal_get_normal_path() is unnecessary.
Issue #1652794: Fixed typo in _xmlsitemap_check_changed_links().
Issue #1597656: Fixed incorrect title entity key for menu links in xmlsitemap_menu_entity_info_alter().
Issue #1291898: Prevent rebuild batch errors if new content is added while xmlsitemap_rebuild_batch_fetch() is running.
