relax SVN archive

The dauvergne_protocol mode is extracted in the assemble_data method, and unit vectors are checked.

Fix for the RelaxWarning system on Mac OS X, the base class __str__ method now returns a simple string.

On a Mac, the warning message text was in unicode whereas the __str__() method must return a standard
string. So now __str__() is using the str() method to convert.

Simple fix for the dauvergne_protocol setup.

In debugging and test mode, the relax controller now writes back to the original IO streams.

This is instead of sys.__stdout__ and sys.__stderr__.

The relax controller will now be shown if hidden and any text is sent to STDOUT or STDERR.

The relax controller log control styles are now set to the 'modern_small' fonts.

Expanded and renamed the 'modern' fonts.

Changed the text of the main gauge in the relax controller.

The model-free and relaxation curve-fitting gauges are now differently named.

This should allow the MC simulation gauges to update correctly, as the rx fitting one was being
overwritten by the model-free one.

RelaxWarnings are now coloured 'orange red' in the log control of the relax controller.