All of this should be doable w/o touching a single line of code, just
editing the [[templates]] BTW.
+Current problems:
+
+ * A doctype should be added: do we want XHTML 1.0 or HTML 4.01 Trans as default?
+ * If XHTML: In templates <hr> should become <hr\> etc.
+ * Image wikilinks should provide an alt text (maybe '$filname wiki-image'?).
+ * &'s in (cgi-)url's must be escaped as &amp;.
+ * [ [inlinepage] ] gets wrapped in <p>...</p> which has a high chance of invalidating the page.