Attached is a set of patches to the org-generic-exporter. They fix a change in the org-preprocess process that means that all uses of the org-generic export facility will crash. They also add rudimentary support for trac wiki and tikiwiki export. Finally, I have removed the HTML exporter from the org-generic export. I don't see any reason to struggle to support this, since it is done better by the core parts of org-mode.
Cheers, r Table of contents: [PATCH 1/5] bind org-export-current-backend in generic exporter. [PATCH 2/5] Added trac-wiki and tikiwiki export settings. [PATCH 3/5] Kill the HTML exporter. [PATCH 4/5] Fixed section-header-prefix for trac wiki. [PATCH 5/5] Fix header prefixes for trac wiki.