v3.4.9

• Pass false to toc-tables, toc-examples, etc: metanorma/metanorma-ogc#871
• Emit custom @Class on definition lists (dl): metanorma/iso-10303#712
• Strip refterm//index: metanorma/metanorma-pdfa#45
• Add configurable publisher bibliography sort order: metanorma/metanorma-oiml#12
• Swap embedded MathML validation grammar from MathML 3 to MathML 4: #1212
• docstage-valid attribute and draft_stage? seam for taste stage repertoires: metanorma/metanorma-pdfa#24
• NamedEscapePreprocessor#log: don't let the debug write abort builds: #1209