[ERM-8] Offer to rollout the parent page/folder

[smiakchilo]

As a Rollout Manager user,

I may sometimes want to rollout an exact page that is situated under another page. If the "parent" page is not rolled out, my operation over the "child" page would fail. Or else, the target tree for my child page would not evdent appear on the screen for selection. This can be embarassing for me if I'm not highly experiences in AEM MSM.

I would like Rollout Manager:

• to detect if my page is under a non-rolled-out parent
• to offer me (in a pop-up message) to rollout the parent page as well.