relax SVN archive

Hand ported r3285 from the 1.2 line, the fix for bug #8953 (https://gna.org/bugs/?8953).

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Fix for bug #8953 (https://gna.org/bugs/?8953).

The bug was introduced by a fix to the model-free results writing function. In relax versions 1.2.9
and below, no data about a residue was being stored in the results file if it was deselected. This
behaviour undesirable as a spin system could be deselected temporarily and later on reselected. If
this process is deliberately interrupted by using 'results.write()' followed by 'results.read()' to
resume, then there will be data loss.

The fix was simple: check for the presence of the 'data.num_ri' data structure.
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Fix for bug #8953 (https://gna.org/bugs/?8953).

The bug was introduced by a fix to the model-free results writing function. In relax versions 1.2.9
and below, no data about a residue was being stored in the results file if it was deselected. This
behaviour undesirable as a spin system could be deselected temporarily and later on reselected. If
this process is deliberately interrupted by using 'results.write()' followed by 'results.read()' to
resume, then there will be data loss.

The fix was simple: check for the presence of the 'data.num_ri' data structure.

More fixes for bug #8996 (https://gna.org/bugs/?8996).

This bug was reported by Carl Diehl.

Although I had, in the previous commit, fixed the non-existant 'data.heteronuc' data structure there
was still an issue because 'data.proton' should have been changed to 'pdb_proton'!

final separation between the multi framework and relax and initial
documentation of multi.processor

Fix for bug #8996 (https://gna.org/bugs/?8996).

This bug was reported by Carl Diehl.

The issue was that the data structure 'data.heteronuc' did not exist and is now called
'pdb_heteronuc'. This issue had been fixed in the 1.3 line but was incomplete in the 1.2 line (the
printing of values was ok but the errors and simulations were incorrect).

Fix for bug #9093.

threaded multi processor support written, multi is now beta!
multi now supports three substrates: mpi4py, uniprocessor, and threads

major restructuring to create generic multiprocessor framework legacy
string based exception handling supported

correct use of -n command line option, work to give general processor
base class and simple processor implimentations

Addition of processor based intro string, correction of error in
Application_callback exceptio_handler named error_handler