relax SVN archive

MS Windows fix - the NOE system and GUI tests are now less strict in checking the errors.

Expanded the spin ID list for the structure.load_spins user function.

This now includes the spins "@N", "@NE1", "@C", "@H", "@O", "@P", ":A@...", ":A@...", ":G@...",
":G@...", ":C@...", ":C@...", ":U@...", ":U@...", ":U@...".

Proper bug fix for storing the execution status of wizard and user function pages.

This allows the test suite to pass again. The execution status is now properly returned from the
wizard pages run synchronously (and always set to True for asynchronous calls).

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).