HideService Ignores ActionColumn

The HideService ignores the ActionColumn as the component offers items only as Array instead of ItemCollection. Now the use of ActionColumn doesn't interfere with HideService.

(CMS-21359)

Studio-Apps Can Now Be Installed As App

When using the "install this site as an app" feature of Chrome-Based browsers caused the studio to not properly load. This has been fixed now.

(CMS-17566)