relax SVN archive

Reverted the removal of the call to the specific duplicate_data() method.

Fix for the residue.create() user function. The residue name is not necessary.

Wrote a system test for the loading of NMRView peak lists.

This comes from Ryan Hoffman's (https://gna.org/users/rydog) feature request attached to bug #11913
(https://gna.org/bugs/index.php?11913).

THe NMRView system test framework is now loaded by the system test runner.

Added the framework for system tests for supporting NMRView within relax.

Addition of an NMRView peak list for use in the relax test suite.

This file originates from Ryan Hoffman (https://gna.org/users/rydog). It can be found attached to
bug #11913 (https://gna.org/bugs/index.php?11913) within the 'convert.tgz' archive
(https://gna.org/bugs/download.php?file_id=4488) as the debug.xpk file.

Created a directory for holding peak lists for the test suite.

Corrected an error in the definition of eta.

This difference arises from a different definition of the constant c... Basically, this only affects
the obtained F_eta value by dividing it by a factor of sqrt(3) independent of the magnetic field.
Hence, consitency evaluation was fine before this correction, except that values were multiplied by
sqrt(3).

Also, the test-suite values for F_eta were changed so the test still passes.

These changes follow a thread started at:
https://mail.gna.org/public/relax-devel/2008-06/msg00013.html
(message ID: 48626A6B.1010104@...)

and continued at:
https://mail.gna.org/public/relax-devel/2008-07/msg00001.html
(message ID: 486D13EB.1000100@...).

Improved the diffusion tensor system tests.

Moved the PDB and sequence loading with the rest of the diffusion tensors initialization and
uncommented the sphere and spheroid parts of the structure.create_diff_tensor_pdb() function test.

Added a missing import.