relax SVN archive

A number of epydoc docstring fixes.

Debugging in the system test 'test_read_xyz_internal2'

The code was changed for extracting an unit vector instead of a non unit vector.

Clean up of parameters in the _create_mc_relax_data() specific API common method.

Fixes for the molmol_macro() and pymol_macro() analysis specific API method docstrings.

Added the pymol_macro() method to the analysis specific API.

Fix for the molmol_macro() analysis specific API - the first arg should be called data_type.

The dauvergne_protocol auto-analysis now creates the PyMOL macros for the model-free data.

The molmol.write and pymol.write now add the macro files to the result files list.

Deletion of the xyz branch as it has now been merged into the main 1.3 line.

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