relax SVN archive

Fix for bug #20173 (https://gna.org/bugs/?20173).

The palmer.create user function should have been checking that the diffusion tensor had been
initialised. This is now being performed.

Changed the RelaxError for missing relaxation times in the relaxation curve-fitting analyses.

Comment spelling fix.

Modified the test_bug_20152_read_dc_file() GUI test to catch the RelaxError!

This error is because of the old PDC format.

Bug fix for the execution of wizard pages - the execution status is now observed.

This fixes bug #20152 (https://gna.org/bugs/?20152).

The problem was that the execution status was being lost in the protected_exec() function. However
as relax errors are caught in the GUI interpreter anyway and the status is returned normally, the
protected_exec() wrapper was removed.

Bug fix for the creation of the user function GUI pages - the (a)synchronous arg is now observed.

This argument was being ignored, which in some wizards was causing user function calls to be
asynchronous. This can result in racing related crashes!

The bruker.read user function now throws a RelaxError when old PDC files are detected.

This is a partial fix for bug #20152 (https://gna.org/bugs/?20152).

Created the test_bug_20152_read_dc_file() GUI test for catching bug #20152 (https://gna.org/bugs/?20152).

This includes truncated data taken from the bug report (with data for only the first 3 residues).

Set up the Bruker Dynamics Center system tests as GUI tests.

This is in preparation for catching bug #20152 (https://gna.org/bugs/?20152).

Re-added Dominique Marion's solvent suppression to the NMRPipe script in the curve-fitting chapter.