relax SVN archive

Updated the CaM frame order double rotor synthetic test data for the perpendicular axes.

The RDC and PCS data has been recalculated for 250,000 structures, this time with the axes being
truly perpendicular.

Updated the double rotor distribution PDB file for the perpendicular axes.

This is for the CaM frame order double rotor synthetic data. The number of structures in this
distribution is set to 100 (10 per motional mode). The PyMOL *.pse file has also been updated.

The double rotor system is now truly perpendicular.

This is for the CaM frame order synthetic test data. The two axes were not perpendicular whereas
for the model they should be.

Small improvement for the devel_scripts/python_seek.py script.

The list of detected Python binaries files are now sorted prior to determining the installed
modules.

Fix for bug #21605, the failure of the Frame_order.test_generate_rotor2_distribution system test.

The bug at http://gna.org/bugs/?21605 is due to the fact that numpy.float16 is not defined on all
systems. Older numpy versions do not have this. Therefore the float16 value is now imported from
lib.check_types where it is aliased to float32 when not defined.

Minor bugfix for the internal structural object add_model() method.

The internal structural object was being called with self as an argument, which would default to the
chain_id keyword argument. The result would be relax state files with multiple copies of the
internal structural object embedded in the structural XML section.

The internal structure object method _pdb_chain_id_to_mol_index() now uses the CHAIN_ID_LIST string.

This allows for the full PDB chain ID range to be supported.

Converted the chain ID list in the internal structural object to the CHAIN_ID_LIST module variable.

Updated the relax version number to 3.1.5 on the http://www.nmr-relax.com/api/index.html webpage.

Updated the news announcement links for relax version 3.1.5 at http://www.nmr-relax.com/download.html.

The correct link is https://gna.org/forum/forum.php?forum_id=2434.