I created a new help file in the authoring tool and it still included the apache license header as part of the header. Is this fine?
Please, Bugzilla is a bug tracker, and not intended for question submission.
Re. your question, we have a wiki: https://wiki.documentfoundation.org/Development/Re-Basing#What_does_your_license_header_look_like_.3F
Now the license is automatically set including for new files, not pointing to the need for choice.
However, following the link Adolfo Jayme, for all new files should only be used MPL and LGPL.
So I confirm it and put 'NEW'.
The authors have to follow http://cgit.freedesktop.org/libreoffice/core/tree/TEMPLATE.SOURCECODE.HEADER carefully, no automation is possible there unfortunately.
Kendy stated in the design session that lines 60 to 67 (For XML / .component) can be used as the header.