relax SVN archive

The command used was:
svn merge -r12775:12774 .

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r12775 | bugman | 2011-03-03 12:59:57 +0100 (Thu, 03 Mar 2011) | 3 lines
Changed paths:
M /branches/relax_data/specific_fns/api_base.py
M /branches/relax_data/specific_fns/model_free/main.py
M /branches/relax_data/specific_fns/setup.py

Removed the model-free specific back_calc_ri() method from the specific code API.
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