relax SVN archive

Ported r28149 to r28151 from the trunk to improve the HTML manual.

The command used was:
svn log -r28149:r28151 svn+ssh://bugman@.../svn/relax/trunk .

Avoidance of a replicated title in the frame order chapter of the manual.

The replicate title finding script now processes short titles as well.

This shows that the Frame_order.html file will be conflicting and overwritten.

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.