Add preferFocalPoint to GetResponsiveImageUrl to take advantage of https://github.com/umbraco/Umbraco-CMS/pull/648
Add preferFocalPoint to GetResponsiveImageUrl to take advantage of https://github.com/umbraco/Umbraco-CMS/pull/648

Jeavon/Slimsy,Jeavon/Slimsy,Jeavon/Slimsy