relax SVN archive

Added the relax 1.3.7 version of the user manual to the repository.

Changed the version number to 1.3.7.

Updated the CHANGES file for relax 1.3.7.

relax version 1.3.6.

This is a bugfix release with 6 months worth of changes.

Added a check for the peak intensity errors.

This is part of the bug fix for bug r17457 (https://gna.org/bugs/index.php?17457) reported by Maddy
Strickland <M.Strickland att bristol dott ac dot uk>.

Decreased the number of simulations to speed up this system test script by a ~ 1/4.

Fix for the new test_curve_fitting_volume() system test - the intensity type is volume, not height!

The peak volume errors are now calculated for replicated spectra in the relaxation curve-fitting.

This bug was identified by Maddy Strickland <M.Strickland att bristol dott ac dot uk> in the post
Message-id: <55870.137.222.43.71.1294412799.squirrel@...>
https://mail.gna.org/public/relax-users/2011-01/msg00007.html.

Implemented a system test to catch a bug in the use of volumes for relaxation curve-fitting.

This bug was identified by Maddy Strickland <M.Strickland att bristol dott ac dot uk> in the post
Message-id: <55870.137.222.43.71.1294412799.squirrel@...>
https://mail.gna.org/public/relax-users/2011-01/msg00007.html.

The diffusion tensor spheroid_type variable is now only updated if it is never explicitly set.

This is to fix the diffusion tensor setting bug found by Vitaly Vostri <vvostri att gmail dott com>
(Message-id: <AANLkTinRO3ZCNwL6GeqWdx0uBvv=PQ=zw6vpdQQeruBW@...>
https://mail.gna.org/public/relax-users/2010-12/msg00014.html).

The result of this bug is that initialising a prolate diffusion tensor with Da set to zero caused
the spheroid_type to be automatically set to 'oblate'. This bug was introduced at exactly r11678,
and was part of changes for better BMRB support. This affects relax version 1.3.6 and the 1.3
repository line from r11678 to 12174.