relax SVN archive

MS Windows fix for the Frame_order.test_generate_rotor2_distribution system test.

The locale.setlocale() function call for correctly setting up a spinning progress meter was failing
on MS Windows. The error is now caught and the local setting skipped.

Fix for the alignment tensor MC simulation objects in the data store for Python 3.1.

The sim_indices object was sometimes created with the range() method, however the returned iterator
does not possess an index() function in Python 3.1. Therefore it was converted to a standard list.

Fix for the PCS system tests on old Python versions.

The self.assertAlmostEqual() function cannot compare None values in earlier Python versions.

Removal of the last unused import from the target_functions package.

Removed all unused imports from the numdifftools extern package.

Removed all unused imports from the auto_analyses package.

Removed all unused imports from the specific_analyses package.

Removed unused imports from the developer scripts.

Removed all unused imports from the target_functions package.

Removed all unused imports from the relax library package.