relax SVN archive

Merged the CHANGES file from the relax 2.1.1 tag back to the trunk.

The command used was:
svn merge -r17540:17541 svn+ssh://bugman@.../svn/relax/tags/2.1.1

Updated the CHANGES file for relax 2.1.1.

Fix for the SVN log converter script for the relax release process.

All SVN messages beginning with "Changed" were being skipped. The skipping of the "Changed paths:"
SVN log lines is now more explicit.

relax version 2.1.1.

This release includes a major overhaul of the relax user manual with the addition of new chapters
and tutorials for all analyses. It also includes a major set of bug fixes to re-enable the NOE, R1,
R2 and model-free analysis of multiple spin types (e.g. the Trp sidechain indole NH).

Modified the model-free optimisation final printout to be more multi-processor friendly.

The message saying that the optimised chi2 is an improvement or not now includes the spin ID string
if present. This is more informative for the multi-processor mpi4py printouts.

Added the use of the program 'nice' to the model-free GUI tutorial in the user manual.

Removed the out of date and useless README file for the HTML version of the user manual.

Added a BMRB section to the end of the model-free chapter of the user manual.

Massive expansion of the model-free chapter of the user manual including script and GUI tutorials.

The model-free chapter now has step-by-step tutorials for both the prompt/script mode and GUI mode
for the new automated model-free protocol (the d'Auvergne protocol). This includes a large set of
screenshots for the GUI mode.

Fixed the dipole_pair.define user function calls in the dauvergne_protocol.py sample script.

This is a recently introduced problem only present in the trunk.