relax SVN archive

Removed a typo from the dispersion model table.

Expanded the numeric dispersion models to include the linear and branched 3-site models in the manual.

Fixes for a number of page numbers in the bibtex file for the user manual.

Added the Korzhnev et al., 2005 reference to the bibliography file for the manual.

Added the TP04 and MP05 R1rho dispersion models to the manual.

These are not implemented in relax, or any of the software in the software comparison section, but
are included for completeness. This was pointed out by Art Palmer.

Added more R1rho model references to the bibliography file for the manual.

This includes the Trott and Palmer 2004 N-site and the Miloushev and Palmer 2005 2-site models. The
Trott and Palmer 2002 R1rho model reference has been expanded to include all details.

Improvements to the pymol.view and molmol.view user functions for finding the PDB files.

Now the possibility that this is being run from a results subdirectory is taken into consideration.
If the file cannot be found, the os.pardir parent directory is added to the start of the relative
path and the file checked for.

Update for NESSY in the dispersion software comparison table of the manual.

Expanded the abbreviations of the user manual for many relaxation dispersion terms.

A bit more editing of the dispersion software comparison table of the manual.