[NTG-context] mml

[Taco Hoekwater]

Hi nico/Hans,

Hans Hagen wrote:
>>          <mo> &#x000AF; </mo>

The MathML spec specifically suggests the use of &OverBar; instead
of a literal accent character in situations like this.

For the macron, "accent=false" should only influence the vertical
placement, not its stretchiness.

Cheers, taco