relax SVN archive

Converted the fix() class method to a module function.

Converted the fix() user function interface to the new design.

Converted the model-free remove_tm() method to the new design.

Fix for the pipe.copy() user function print out.

Expanded the OMP model-free optimisation system test.

The initial round of spherical diffusion optimisation (removal of tm and diffusion tensor opt) is
now tested. The first round of normal optimisation is also implemented with the optimisation of the
model-free models and model selection.

Module docsting updates in the generic_fns package.

All missing module docstrings were created, the current ones modified, and the copyright notices
updated.

Initialized merge tracking via "svnmerge" with revisions "1-6739" from
svn+ssh://bugman@.../svn/relax/1.3

Recreated the rdc_analysis branch.

The original branch ended up being a branch for PDB development. This was hence merged into 1.3 and
then deleted.

Deleted this branch as it ended up being used for PDB reading and writing development.

It will be recreated anew for its original purpose.

Removed merge tracking for "svnmerge" for
svn+ssh://bugman@.../svn/relax/branches/rdc_analysis