• Add option for defining job queue name on chunk()
• Fix first column gets key 1 instead of 0
• Passing any string value (e.g. "normal") or indeed any truthy value at all to CellWriter::setFontWeight() will result in bold text, so this enforces that it has to be either "bold" or true. Also, ternary isn't needed.
• Fix borders for merged cell, for all write methods