relax SVN archive

Added tests for the contents of the results file in the test_write_results() system test.

Added the final OMP model-free results file (from relax 1.3) with the simulations truncated.

Fix for the test_write_results() system test.

Modifications to the DummyFileObject class to better act as a file object.

Started to check the contents of the model-free results file from results.write().

Added epydoc comments to the DummyFileObject.write() method.

Added a close() method to DummyFileObject.

Fix for the new test_write_results() system test.

Modified open_write_file() to catch and return objects with write methods.

Modified results.write() to allow any object with a write() method to be used as the output file.