* contrib/lisp/org-element.el: Move archived tree handling out of
org-element-map.
* contrib/lisp/org-export.el (org-export-get-ignore-list): Properly
ignore archived with `org-export-with-archived-trees' set to
`headline'.
* testing/contrib/lisp/test-org-export.el (test-org-export/handle-options):
Add a test for that.
* contrib/lisp/org-export.el (org-export-get-inbuffer-options): Fix
but with incomplete macros returning an error. Also with behaviour
`nil', only insert new value if none was defined before.
(org-export-use-select-tags-p): Fix bug preventing it from properly
detecting select-tags.
(org-export--skip-p): Small refactoring
* testing/contrib/lisp/test-org-export.el: New test file.