relax SVN archive

Fixed some bad referencing in the dispersion chapter of the manual.

Small edits of the dispersion chapter of the manual.

Edited the MQ abbreviation in the user manual.

Rearrangements of the tables in the dispersion chapter of the user manual.

The tables have been shifted out into their own LaTeX files, and all dispersion model tables have
been concatenated into one.

Fixes for the 'MQ NS CPMG 2-site' model equations in the user manual.

Simplified the 'MQ NS CPMG 2-site' model code in lib.dispersion.

Added the 'MQ NS CPMG 2-site' model to the relax user manual.

This is the 2-site numeric solution for multi-quantum CPMG-type data.

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 a latex definition for the dwH dispersion parameter and added the 'MQ' abbreviation.

Fixed the 'MQ NS CPMG 2-site' model description in the relax_disp.select_model user function.

The magnitisation vector is 2D, not 3D.

Rearranged the 'Implemented models' subsection of the dispersion chapter of the manual.