[Netrexx-develop] Some tex doc changes

[Jason M. <agr...@gm...>]

Needs p to spell pop
./nrl/nr3crexxio.tex:62:\index{poOutputStream method,}

Please add to ./nrl/nr3crexxio.tex
\index{AskOne method,}
\index{setOutputStream method,}

Please add Op before NotEq
./nrl/nr3crexx.tex:280:\index{NotEq method,}
./nrl/nr3crexx.tex:286:\index{NotEqS method,}