https://issues.liferay.com/browse/LRDOCS-1476

https://issues.liferay.com/browse/LRDOCS-1476 Added warning about the 'resources-importer-developer-mode-enabled=true' and 'resources-importer-target-class-name=com.liferay.portal.model.Group' properties and elaborated on existing warning, ported dev guide update to dev site