• add margin option now support multi values CSS format '5px 10px 0 20px' or '5em 10em'
• add data-gs-static-grid attribute
• fix class="ui-draggable-disabled ui-resizable-disabled" have been added back to static grid items, so existing CSS rule to style continue working #1435
• fix getting DOM element by id with number works (api that uses GridStackElement handle more string formats)
• fix setting marginTop (or any 4 sides) caused resize to break. Marking legacy as I recommend using new margin format. Thanks @deadivan for suggested fix.