relax SVN archive

Updated the epydoc compilation of the API docs to include all unit tests.

Removed a duplicated entry in __all__.

Updated the test_suite.unit_tests package __init__ module.

A package docstring was added, and the __all__ list completed.

Updated the test_suite.system_tests package __init__ module.

A package docstring was added, and the __all__ list completed.

Updated the test_suite package __init__ module.

A package docstring was added, and the __all__ list completed.

Removed all the subdirectories of test_suite and model_free from the API docs.

Fixed indentation in the Unit_test_runner.__init__ docstring to allow the API docs to be compiled.

All packages in the specific_fns and test_suite directories are now being included in the API docs.

The specific_fns.model_free package is now being included in the API documentation.

Updated the specific_fns.model_free package __init__ module.

A module docstring has been added, as well as the __all__ list.