relax SVN archive

Removed the text 'Test of ' from the front of each test in the summary of the test suite.

Added a test of the user function 'relax_data.read()' to the test suite.

Added the ability to execute Molmol macros on the prompt and pipe them into the program.

Fixed the X11 colour list by removing duplicates.

The Molmol and X11 colour lists can now be explicitly chosen by the 'molmol.write()' user function.

Added all the X11 colours from the file '/usr/X11R6/lib/X11/rgb.txt' to the colour file.

Reverted the change of r2462. This was an attempt at fixing bug #5746.

The bug which was reported by Chris MacRaild is located at
https://gna.org/bugs/?func=detailitem&item_id=5746.

The command used to revert the change was:

$ svn merge -r2462:2461 .

Fix to bug #5753.

The bug is located at https://gna.org/bugs/?func=detailitem&item_id=5753.

The fix simply involved adding a test for the presence of the run name key in self.relax.data.pdb.

Fix to bug #5752.

The bug report is located at https://gna.org/bugs/index.php?func=detailitem&item_id=5752.

The problem was simply two calls to 'file.pipe_write()' which should have been 'file.write()' as
'file' is a real file object.

Fix to bug #5746.

The bug report submitted by Chris MacRaild "c.a.macraild at leeds.ac.uk" is located at
https://gna.org/bugs/?func=detailitem&item_id=5746.

The issue was simply an incorrect test in the 'self.model_statistics()' function of the model-free
specific code. An 'and' should have been an 'or'.