relax SVN archive

Added the original Maple script to the lib.dispersionns_cpmg_2site_expanded module docstring for reference.

This was sent by Nikolai in a private communication.

Removed an empty line.

Created a 'TODO' section in the dispersion chapter of the relax user manual.

This lists all of the features and models currently missing from the dispersion analysis in relax.

Modified the dwH symbol in the relax user manual.

Added the 'MQ CR72' model to the relax user manual.

This is the Carver and Richards (1972) 2-site model expanded for MQ CPMG data by Korzhnev et al.,
2004.

This follows the tutorial for adding relaxation dispersion models at:
http://wiki.nmr-relax.com/Tutorial_for_adding_relaxation_dispersion_models_to_relax#The_relax_manual.

Added scripts and results for optimising Sprangers' ClpP MQ CPMG data to the 'MQ NS CPMG 2-site' model.

This includes two scripts for non-clustered followed by clustered analysis using the 'MQ CR72' model
in the auto-analysis so its parameters will be used as the optimisation starting point for the
'MQ NS CPMG 2-site' model. The results files for both scripts have been added to the repository.

Used the \imath LaTeX symbol for complex numbers in the dispersion chapter of the manual.

Modified the relaxation dispersion auto-analysis to take nesting of MQ models.

This is specifically the nesting of the analytic 'MQ CR72' model and the 'MQ NS CPMG 2-site' models.
The analytic solution is now used as the optimisation starting point for the numeric model.

Added Skrynnikov and Tollinger to the copyright notice in lib/dispersion/ns_cpmg_2site_star.py.

I can now see that the code derives from the funNumcpmg.m of the sim_all.tar file
(https://gna.org/support/download.php?file_id=18404) attached to https://gna.org/task/?7712#comment5.
This sim_all.tar file is the original code of Nikolai and Martin.

Improvements for the LaTeX maths commands used in the dispersion chapter of the user manual.