relax SVN archive

Added the diffusion tensor object unit test 'test_set_spheroid_errors'.

Shifted the calculation of the diffusion objects from the 'test_set_spheroid_params' unit test.

These are now calculated by the method 'self.calc_spheroid_objects()' so that it can be used by
unit tests for the setting of spheroidal errors and simulation values.

Renamed the unit test 'test_set_prolate_params' to 'test_set_spheroid_params'.

Added the diffusion tensor data structure unit test 'test_set_prolate_params'.

This test checks that all the parameters, vectors, and matrices associated with the prolate
spheroidal diffusion tensor are set up correctly.

Added the '--unit-test' command line argument.

Supplying this argument to relax will cause solely the unit tests of the test suite to be run.

Changes to the output formatting functions of the test suite.

The methods 'self.heading()' and 'self.summary_line()' have been converted to functions and have
been shifted from the file 'test_suite/system_tests/main.py' into the new file
'test_suite/formatting.py'. The final printout by 'test_suite/runner.py' now used these functions.

Modification of the 'test_set_tm' diffusion tensor data structure unit test.

After setting the tm parameter, the automatically generated Diso parameter is tested to see if it is
correctly set.

Modified the 'test_set_Diso' unit test.

Rather than testing the RelaxError message string, the 'self.assertRaises()' function is called to
assert that a RelaxError must occur.

Modified the 'test_set_Diso' and 'test_set_tm' unit tests to use the proper assert functions.

Completed the 'test_set_Diso()' and 'test_set_tm()' unit tests.