relax SVN archive

Implemented the relax_data.read() user function interface.

Added 13 unit tests for the args of the relax_data.read() user function.

Added the framework for the arg unit tests of the relax_data user functions.

Added the base class framework for testing the relaxation data modules.

Updated the modification date of the script.

Update for the N-state model sample script.

The input parameters were in Pales format so the param_types arg was changed to 1.

Bug fix for the N-state model sample script.

Tuples rather than lists were required by the align_tensor.init() user function.

Bug fix for the dependency_generator() function.

Bug fix for the test_set_sim() unit test.

Added a set of unit tests for the data.align_tensor module and its class methods.