Should support creation of index

[bwl21]

Wortsammler should support the creation of an index by applying the TeX-Commands

\usepackage{makeidx}
 \index{Neurobiologie}
\newpage
\printindex
\end{document}

see http://www1.ku-eichstaett.de/urz/schriften/makeidx.pdf (sorry, it is in German) for details

Support shall be such that

• it performs mkindex if after the first LaTeX run, we have a {inputfile}.ind
• it documents how to setup an index.