[NTG-context] Keep framed on the baseline

[David Arnold]

All,

I have:

\placeformula[-]
\startformula
   \eqalign{
   &\text{Divisors of 12}: \framed{1},\ \framed{2},\ \framed{3},\ 4,\  
\framed{6},\ 12\cr
   &\text{Divisors of 18}: \framed{1},\ \framed{2},\ \framed{3},\  
\framed{6},\ 9,\ 18}
\stopformula

But I'd like to keep the numbers on the same baseline and let the  
frame dip below the baseline.