relax SVN archive

This was kindly provided by Dr Flemming Hansen (flemming AT pound DOT med DOT utoronto DOT ca) and
was previously published in: Hansen, Vallurupalli & Kay, 2008, JPhysChemB, 112: 5898-5904.

The original format was different and was modified to better suit the way relax handles datasets.

Finally, the information contained here were written in a 'readme' file placed in the same
directory as the dataset itself to allow referencing and acknowledgments.