[dev-context] tabl-tab.mkxl: \TB and \HL

Hi, two bugs in the definitions for the \HL and \TB commands. \permanent\tolerant\protected\def\tabl_table_HL[#1]%   {\tabl_tables_chuck_auto_row    ...      \bgroup \global\c_tabl_table_hrule_thickness_factor\m_tabl_table_HLheight\relax -      \iffirstargument +      \iftok{#1}\emptytoks\else          \glet\m_tabl_table_hrule_color\empty    ...    \egroup} \permanent\tolerant\protected\def\tabl_table_TB[#1]%   {\tabl_tables_chuck_auto_row    \tabl_table_finish_row    \noalign\bgroup -  \blank[\iftok{#1}\emptytoks\c!NL\else#1\fi]% +  \blank[\iftok{#1}\emptytoks\directtablesparameter\c!NL\else#1\fi]%    \nobreak    \egroup} Wolfgang