2011/12/31 0.21 Harald Harders (harald.harders@gmx.de) - Change Makefile in order to produce pdf documentation - Set date and version explicitly in \ProvidesPackage 2003/11/09 0.20 Harald Harders (harald.harders@gmx.de), Rolf Niepraschk - Reimplementation, provide grid for headings and a frame for the margin 2003/10/30 0.10 Harald Harders (harald.harders@gmx.de) - First version