relax SVN archive

Implemented the cdp.exp_info.from_xml() method to correctly restore the experimental info structure.

This fixes bug #22704 (https://gna.org/bugs/?22704), the corrupted relax state files after setting
the relax references via the bmrb.software, bmrb.display, or bmrb.write user functions.

This custom ExpInfo.from_xml() method is required to properly recreate the software, script and
citation list data structures of the cdp.exp_info data structure, as these are special RelaxListType
objects populated by Element objects (both from data_store.data_classes).

Fix for the cdp.exp_info.software data structure setup.

This is a partial fix for bug #22704 (https://gna.org/bugs/?22704), the corrupted relax state files
after setting the relax references via the bmrb.software, bmrb.display, or bmrb.write user
functions.

The Element data container name was being replaced by the software name, making it impossible to
restore from the XML.

Uncommented some checks in the Bmrb.test_bug_22704_corrupted_state_file system test.

Added checks to the Bmrb.test_bug_22704_corrupted_state_file system test.

This is to see if the cdp.exp_info data structure has been correctly restored from the save file.

Fix for the experimental information data pipe object when converting to XML state and results files.

This is a partial fix for bug #22704 (https://gna.org/bugs/?22704), the corrupted relax state files
after setting the relax references via the bmrb.software, bmrb.display, or bmrb.write user
functions.

The names and descriptions for the software, citation and script list objects were incorrectly set.
These have been fixed so that the name of the data structure and the real description is present in
the XML state or results file instead of <relax_list desc='relax list container'>.

Fix for the experimental information data pipe object when converting to XML state and results files.

This is a partial fix for bug #22704 (https://gna.org/bugs/?22704), the corrupted relax state files
after setting the relax references via the bmrb.software, bmrb.display, or bmrb.write user
functions.

The names and descriptions for the software, citation and script list objects were incorrectly set.
These have been fixed so that the name of the data structure and the real description is present in
the XML state or results file instead of <relax_list desc='relax list container'>.

Implemented writing and plotting of statistics for individual and clustered fitting, compararing to full NI.

Task #7826 (https://gna.org/task/index.php?7826): Write an python class for the repeated analysis of dispersion data.

Implemented getting the statistics for parameters and comparing to init NI.

Task #7826 (https://gna.org/task/index.php?7826): Write an python class for the repeated analysis of dispersion data.

Removed a debugging printout fatal for Python 3.

Created the Bmrb.test_bug_22704_corrupted_state_file system test.

This is to catch bug #22704 (https://gna.org/bugs/?22704), the corrupted relax state files after
setting the relax references via the bmrb.software, bmrb.display, or bmrb.write user functions.