fix: remove forgoten console.log

Author: swiety85

src/gridList/gridList.ts

@@ -470,7 +470,7 @@ export class GridList {
         }
         const rowBelowItem = this.grid[position.x - 1];
 
-        return rowBelowItem
+        return (rowBelowItem || [])
             .slice(position.y, position.y + position.h)
             .reduce((isFloating, cellItem) => {
                 return isFloating && !!cellItem;

src/gridster.service.ts

@@ -399,7 +399,7 @@ export class GridsterService {
 
     private refreshLines() {
         const gridsterContainer = <HTMLElement>this.gridsterComponent.$element.firstChild;
-        console.log('refresh');
+
         if (this.options.lines && this.options.lines.visible &&
             (this.gridsterComponent.isDragging || this.gridsterComponent.isResizing)) {
             const linesColor = this.options.lines.color || '#d8d8d8';