relax SVN archive

Updated the http://www.nmr-relax.com/download.html webpage for relax 3.1.5.

Added the relax 3.1.5 manual to the repository.

Updated the version number to 3.1.5.

Backported the relax 3.1.5 CHANGES file addition to trunk.

The command used was:
svn merge -r22123:22124 svn+ssh://bugman@.../svn/relax/tags/3.1.5 .

Removed tailing whitespace from the CHANGES file.

Improvements for the devel_scripts/log_converter.py script - trailing whitespace is now stripped.

Updated the CHANGES file for relax 3.1.5.

relax version 3.1.5.

This is a major bugfix release which fixes the complete failure of the NOE analysis for most users,
a bug introduced in the last relax release (https://gna.org/forum/forum.php?forum_id=2433). All
users of relax 3.1.4 should upgrade to this version.

Merged revisions 22118 via svnmerge from
svn+ssh://bugman@.../svn/relax/trunk

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r22118 | bugman | 2014-02-04 15:47:21 +0100 (Tue, 04 Feb 2014) | 3 lines

Fix for the number precision in the Noe.test_bug_21591_noe_calculation_fail system test.
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Merged revisions 22117 via svnmerge from
svn+ssh://bugman@.../svn/relax/trunk

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r22117 | bugman | 2014-02-04 15:46:47 +0100 (Tue, 04 Feb 2014) | 9 lines

Fix for bug #21591 (https://gna.org/bugs/?21591), the complete failure of the NOE analysis.

This bug was reported by Martin Ballaschk (https://gna.org/users/mab).

The issue was introduced in the fix for bug #21562 (https://gna.org/bugs/?21562). The problem is
that the overfit_deselect() method was deselecting all spins with two data points or less rather
than one or less.
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