code: function( arr ) {
  		var minWidth = 0, minHeight = 0;
  
  		for( var i = 0; i < arr.length; ++i ) {
  			minWidth = Math.max( arr[ i ].minWidth || 0, minWidth );
  			minHeight = Math.max( arr[ i ].minHeight || 0, minHeight );
  		}
  
  		return { horizontal: minWidth, vertical: minHeight };
  	}
docs: Gets the minimum dimensions for the given item configuration array
  @param item
  @private