relax SVN archive

Created a relax state for the R2eff SQ data of Korzhnev et al., 2005.

Added the results from Korzhnev's cpmg_fit program for the Asp9 Fyn SH3 dispersion data.

Added Dmitry Korzhnev's Fyn SH3 domain data for Asp 9 to the repository.

This is from Dmitry M. Korzhnev, Philipp Neudecker, Anthony Mittermaier, Vladislav Yu. Orekhov, and
Lewis E. Kay (2005) Multiple-site exchange in proteins studied with a suite of six NMR relaxation
dispersion experiments: An application to the folding of a Fyn SH3 domain mutant. 127, 15602-15611
(doi: http://dx.doi.org/10.1021/ja054550e).

It consists of the 1H SQ, 15N SQ, ZQ, DQ, 1H MQ and 15N MQ data for residue Asp 9 of the Fyn SH3
domain mutant.

Added ZZ exchange as a missing feature to the dispersion chapter of the manual.

Bug fix for the 'MQ NS CPMG 2-site' model.

This was found with the aid of private feedback from Dmitry Korzhnev and him emailing his cpmg_fitd9
program. The problem is that he defines the 'n' parameter as half of a CPMG block. The code was
however assuming that 'n' is a full CPMG block!

Updates for the dispersion software comparison section of the user manual.

Added a new section to the dispersion chapter of the manual for comparing different dispersion software.

This is an expansion of the table in the paper draft.

Added some lines to the end of the script UI section of the dispersion chapter about custom protocols.

Fix for the relaxation dispersion specific private _cluster_ids() method.

This was identified at http://thread.gmane.org/gmane.science.nmr.relax.devel/4716.

The cluster data structure was not being referenced correctly.

Added ZQ and DQ data to the TODO list in the dispersion chapter of the manual.