relax SVN archive

Removed some debugging code which was causing problems.

Created the framework for the N-state model specific code.

Changed the user function run.create to pipe.create in the sample script for consistency testing.

This was pointed out by Edward d'Auvergne in the post at :
https://mail.gna.org/public/relax-devel/2007-12/msg00024.html (Message-id:
<7f080ed10712200247q3222457awb382a99e6b64d63d@...>)

Changed the align_tensor data object from a dictionary to an instance of SpecificData.

Added a print statement to show the current data pipe.

Added statements to store the singular values and condition number.

Added the basis_set keyword argument to the align_tensor.svd() user function.

Expansion of the singular_values() function.

The basis_set argument has been added to allow the selection between {Sxx, Syy, Sxy, Sxz, Syz} and
{Szz, Sxxyy, Sxy, Sxz, Syz}.

Wrote a first draft of the consistency testing documentation.

Text was inspired from the docstring in the file maths_fns/consistency_tests.py (main 1.2 line).

Synced the file specific_fns/consistency_tests.py from the file specific_fns/jw_mapping.py.

This file was first created as a copy of the file specific_fns/jw_mapping.py but was never updated.
Now, the two files are identical. It will thus be easier to modify this new version which
incorporates many aspects of the 1.3 line redesign.