relax SVN archive

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Removed the out of date and useless README file for the HTML version of the user manual.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

The GUI model-free auto-analysis dipole_pair.define field values have been changed again.

These now default to @N and @H, as @N* and @H* will connect @N spins to @HE1 spins and @H spins to
@NE1 spins!

Fix for bug #20189 (https://gna.org/bugs/?20189).

The Sequence GUI element can no handle values of None.