Navigation is not making use of intent for tables

[NSoiffer]

The speech for the "line" (etc) table properties doesn't say row/column, however the navigation does say that.

Here's an example:

<math>
  <mtable intent=":lines" columnalign="right left left" columnspacing="0em" rowspacing="3pt">
   <mtr> <mtd> <mi>y</mi></mtd>  <mtd><mo>=</mo> </mtd>  <mtd><mn>7</mn><mo>-</mo><mn>1</mn></mtd>  </mtr>
   <mtr> <mtd></mtd>  <mtd><mo>=</mo></mtd>  <mtd><mn>6</mn></mtd> </mtr>
  </mtable>
</math>

Using ctrl+arrow, you hear the row and columns. For "lines", "system-of-equations", and "piecewise", you shouldn't hear "column n", and "line n" instead of "row n" should be used.