Allow more customization of opendocument styles.

Automatic styles can now be inserted in the template,
since the template, not the writer, now provides the
enclosing `<office:automatic-styles>` tags.

Closes #2520.

data/templates

@@ -1 +1 @@
-Subproject commit ef963c30605d7f0558b9cfbf7183f0aa4aad688e
+Subproject commit c31874467bb58ac1735dc28af458e7603a166397

src/Text/Pandoc/Writers/OpenDocument.hs

@@ -191,8 +191,7 @@ writeOpenDocument opts (Pandoc meta blocks) =
       listStyle (n,l) = inTags True "text:list-style"
                           [("style:name", "L" ++ show n)] (vcat l)
       listStyles  = map listStyle (stListStyles s)
-      automaticStyles = inTagsIndented "office:automatic-styles" $ vcat $
-                          reverse $ styles ++ listStyles
+      automaticStyles = vcat $ reverse $ styles ++ listStyles
       context = defField "body" body
               $ defField "automatic-styles" (render' automaticStyles)
               $ metadata