relax SVN archive

A number of large additions to the relax manual.

In the development chapter a section called the 'The core design of relax' has been added. This
section has a diagram of the internal design of relax and text describing all the parts.

The 'Values, gradients, and Hessians' chapter has been completed. All the first and second partial
derivatives of the weights and correlation times of the ellipsoid, spheroid, and sphere have been
added (as well as the original equations). The equations, gradients, and Hessians of the dot
products used in the weights of the ellipsoid and spheroid have been added. Importantly, the
model-free equations and the first and second partial derivatives which create the gradients and
Hessians have been added. These equations include the derivatives of the original model-free
formula of Lipari and Szabo (1982a,b) with the parameters {S2, te}, the derivatives of the extended
model-free formula of Clore (1990) with the parameters {S2, S2f, tf, ts}, and the derivatives of an
alternative set of extended parameters {S2f, S2s, tf, ts}.

Modified the Sconstruct manual cleaning target to remove the 'relax.out' file.

Split the Sparky and XEasy peak intensity reading functions to allow the easy addition of new types.

Added the model m0 to the sample scripts.

Editing of all chapters of the manual and a few large changes.

The data analysis chapter has been split into four. The new chapters include the NOE chapter, the
relaxation curve-fitting chapter, the model-free chapter, and the reduced spectral density mapping
chapter.

The start of the 'Value, gradient, and Hessian' chapter has been moved into the new model-free
chapter under the section 'Theory'. The material moved includes the chi-squared equation, the
relaxation equations, the transformed relaxation equations, the model-free spectral density
functions, and the Brownian rotational diffusion equations.

Many more places in the text have been indexed.

The text of all chapters has been proofed.

Corrects copywrite notice for test_suite/jw_mapping.py

Corrected copyright assignments for c based maths_fns

Changed the release checklist to say to post the release message to relax-announce at gna.org rather
than relax-users at gna.org.

Spell check of the changes file.

The Sconstruct generation of the distribution files now creates a base directory called
'relax-x.x.x/' where x.x.x is the version number rather than just 'relax/'.