relax SVN archive

Improved formatting for the \yes LaTeX command for the HTML manual (www.nmr-relax.com/manual/).

This now inputs the raw HTML character for a tick.

Updated the relax version number to 4.0.1 on the http://www.nmr-relax.com/api/index.html webpage.

Updated the relax API documentation at http://www.nmr-relax.com/api/4.0/ to version 4.0.1.

Updated the relax HTML manual at http://www.nmr-relax.com/manual/index.html to version 4.0.1.

Updated the http://www.nmr-relax.com/download.html webpage for the relax 4.0.1 release.

Backported the relax 4.0.1 CHANGES file changes to trunk.

The command used was:
svn merge -r28142:28143 svn+ssh://bugman@.../svn/relax/tags/4.0.1 .

Updated the CHANGES file for relax 4.0.1.

Added the relax 4.0.1 PDF manual to the repository.

Updated the relax version number to 4.0.1.

relax version 4.0.1.

This is a major feature and bugfix release. Features include the new structure.pca user function
for performing a principle component analysis (PCA) of a set of structures, handling of replicated
R2eff data points in the dispersion analysis, improvements in the handling of PDB structures, the
protection against numpy >= 1.9 FutureWarnings for a number of soon to change behaviours in numpy,
and addition of a deployment script for the Google Cloud Computing. Bugfixes include an error when
loading relaxation data, the CSA constant equation in the manual, missing information in the relax
state and results files, loading of certain state files in the GUI, running relax with no graphical
display and using matplotlib, BMRB export failure when a spin container is missing data or
parameters.