[AdaptivePageLayout] Add function to clear higher columns of pages

[Michael Hall]

Please add a function that will allow the developer to remove pages from any higher-numbered columns than itself. This is similar to removePages(targetPage) except that it does not remove the targetPage or any pages in it's column.

Suggestion:

removeChildPages(targetPage)

Use Case:

in uReadIt I have a SubredditGalleryPage, which allows the user to swipe back and forth through images from a subreddit like /r/funny. This will occupy the 2nd column in my layout. Each image can have a CommentsPage for it's comments opened in the 3rd column. When a CommentsPage is opened for an image in SubredditGalleryPage, and the user changes to another image, I would like to close the CommentsPage and any child of it (such as a PostMessagePage)

[Zsombor Egri (zsombi)]

The removePages() removes any high-numbered column page and itself. Do I get it right that you would like one which does the same except keeps the page given as parameter?

[Zsombor Egri (zsombi)]

More like roll back to page?