relax SVN archive

Fixed the column number for the intensity.

Fixed the extraction of the residue number, nucleus name and heteronucleus name.

Added the function for the NMRView peak list header handling.

Fixed a problem raised when the number 0 would be given as relaxation delay.

A delay of 0.0 is now given for the intensities associated with the Sparky peak list.

Added a system test for the reading of a Sparky peak list.

This will help find the problems specific to NMRView peak list support...

Fixed the name of the NMRView program.

Fix for bug #12437 (https://gna.org/bugs/?12437).

The problem was that the 'from_xml' and 'to_xml' methods needed to be blacklisted to prevent them
from being restored from the pickled state.

Fix for the theta and phi angle checks in the test_palmer_omp() system test.

Fix for the setting of the theta and phi diff tensor angles from the Modelfree4 mfout file.

The angles need to be passed in in radian units.

Reverted r7677. This was a false alarm!

The command used was:
svn merge -r7677:7676 .