relax SVN archive

The dauvergne_protocol is now more robust if the program is interrupted and restarted later.

The opt/results.bz2 file is now searched for, and if not the round is assumed incomplete.

Fix for the relax controller progress gauge for the iteration round in the dauvergne_protocol.

The gauge should not be updated if the round is in the initial state of None.

Typo fix.

All wx object Append() calls now have their data passed through str_to_gui() first as well.

This prevents GUI failures due to the wrong data type being encountered.

Some more SetValue calls are having the data pass through str_to_gui() first.

All data passed into wxPython SetValue calls now go through gui.misc.*_to_gui() functions.

This ensures that the correct data type is sent into the GUI elements.

Deleted the now unused gui.execution.calc_rx module.

Fix for the stereochemistry auto-analysis - the pipe_name arg does not exist in this auto-analysis.

Fix for the dauvergne_protocol - the maximum number of optimisation iterations is now an int.

The observers of pipe alterations should now all be thread safe.

Pipe changes in relax were causing segfaults in the GUI.