relax SVN archive

Improved the error handling for AICc model selection.

The code now tells users with too small datasets (n<=k) why AICc model selection does not work in
their situation.

This follows a discussion started at:
https://mail.gna.org/public/relax-devel/2009-10/msg00015.html
(# Message-id: <4ACD6F60.7060102@...>)

Shifted pystarlib into bmrblib.

The pystarlib software is only used by bmrblib. This also prepares for bmrblib to be spun off as
a stand alone project.

Fix for the NMR_STAR_v3_2 class set up.

This should have been using Relaxation_v3_2.

Modified the BMRB read/write system test to use the bmrb.read() version arg.

Also reverted the default version number to 3.1.

Introduced the version arg to the bmrb.read() user function.

This is mainly useful for debugging.

Added the missing 'ChiSquaredVal' to the tag_names structure for the base class.

Bug fix for the non-version specific NMR-STAR dictionary.

The CSA saveframe was incorrectly setup.

A number of changes to create the infrastructure for v3.0 and lower of the NMR-STAR dictionary format.

Modified the BMRB read/write system test to set the NMR-STAR dictionary version.

Significant updates to the BMRB user function module, including the addition of the version arg.