relax SVN archive

Another fix for the arg_check.is_none() function.

This time, the RelaxNoneError was incorrectly called.

Merged revisions 15016 via svnmerge from
svn+ssh://bugman@.../svn/relax/1.3

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r15016 | bugman | 2011-12-02 12:40:44 +0100 (Fri, 02 Dec 2011) | 3 lines

Bug fix for the arg_check.is_none() function - the RelaxNoneError was not imported!
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Bug fix for the arg_check.is_none() function - the RelaxNoneError was not imported!

Added an initial attempt at the frame order auto-analysis protocol code.

Initialized merge tracking via "svnmerge" with revisions "1-15012" from
svn+ssh://bugman@.../svn/relax/1.3

Creating a branch for playing and extending the frame order theory.

Created a new algorithm for finding the pivot of motion between different structural models.

This is available through the structure.find_pivot user function.

Fix for the numbering of the TER record and subsequence HETATM records in the PDB file creation.

The structure.write_pdb user function now creates the correct TER record after the ATOM records,
and the HETATM records are renumbered if needed.

Added the validate_models() method to the structural API.

This is used to check that the models are 100% consistent.

Added the centroid argument to the structure.superimpose user function.

This allows for the superimposition of structures assuming a pivoted motion.