Book Child Order

This module provides an extra tab on every node that is part of a book. This tab allows users with the right permissions to change the order of the book node's child nodes.

This means that users who don't have permission to re-order the entirety of a book's structure can nonetheless order child pages. The alternative would be editing each child node individually to set the relative order on each one.

This module was written for #2126285: allow access to page to order book page's children.