relax SVN archive

The null device can now be opened instead of a file for writing by passing 'devnull' as the name.

Shifted the model-free results reading test of results.read() to the end of the list.

Added a test for setting the CSA value and bond length simultaneously to the test suite.

Added tests for setting the CSA and bond length in model-free analysis to the test suite.

Fix to bug #5805.

The report is located at https://gna.org/bugs/?func=detailitem&item_id=5805.

The fix was simply to skip lines which don't have four columns.

Added a residue with no data to the S2 = 0.970, te = 2048, Rex = 0.149 relaxation data.

Fixed the alignment of the test suite summary.

Removed the '*.out' clean target from the Sconstruct script to avoid deleting test data.

The test suite now terminates on a failed test if the flag '--debug' is passed to relax.

Modified the summary description of each test.

The start of each is capitalised and a couple have been modified.