* contrib/lisp/org-export.el (org-export-get-parent): New function.
(org-export-data, org-export-get-previous-element,
org-export-get-next-element): Use new function.
* EXPERIMENTAL/org-e-ascii.el (org-e-ascii-item): Use new function.
Refactor code.
(org-e-ascii-paragraph): Use new function.
* EXPERIMENTAL/org-e-latex.el (org-e-latex-item): Use new function.
* EXPERIMENTAL/org-e-html.el (org-e-html-item): Use new function.
* EXPERIMENTAL/org-e-odt.el (org-e-odt-item): Use new function.
This is based on org-e-html. It can create simple documents. Lots of
cleanups will follow. With this change, org-e-html and org-e-odt can
develop independently.