[NTG-context] \bTABLEheader used to work?

18 Oct 2015

      I tried to build on a previously compilable table generating context 
file, but can not do so now.   Here is  a simple example:

I am getting a " ! Undefined control sequence
                       Line #.20   which is ==>    \bTABLEheader

Do I have hidden bug in my script or did this change?
I'd appreciate hellp of this.

Thanks
--------------------------

% start here
\define\ROWCNT{5}
\define\COLCNT{5}

\starttext
%
   \bTABLE[align={middle,lohi},width=20mm,height=10mm]

      \bTABLEheader
        \bTR  \bTD \eTD        \dorecurse{\COLCNT}  { \bTH #1 \eTH } \eTR
          %  col label cells    % ... data cells ...........
      \eTABLEheader

      \bTABLEbody
         \dorecurse{\ROWCNT}
           {
           \bTR
           \bTD #1 \eTD   % row label cells
           \dorecurse{\COLCNT}  { \bTD  \eTD }   % data rows  (use 
#1:##1  for r# : c#)
           \eTR
           }
      \eTABLEbody

   \eTABLE
\stoptext
% end of example

[NTG-context] \bTABLEheader used to work?

Henman