relax SVN archive

The default GUI user function description minimum height has been increased to 300.

The algorithm makes this shorter if the description is shorter anyway! This removes a lot of
scrolled descriptions automatically.

Even more spacing and layout improvements for the GUI user function descriptions!

Increased the default size of the GUI user functions.

More layout fixes for the GUI user function descriptions.

More spacing and layout improvements for the GUI user function descriptions.

Spacing fixes for the GUI user function descriptions (for both the theory and practice).

The dauvergne_protocol sample script initial pipe name has been modified to include the pipe bundle.

The GUI now sends the pipe bundle name into the relax_fit and noe auto-analyses.

The relax_fit and noe auto-analyses now centre around the pipe bundle rather than data pipe name.

These now have the pipe_bundle argument.

Fix for the model-free about dialog - the fonts for the different titles can now be set.

The new font.roman_font_18 has been added, and the about dialog draw_title() method now takes the
alt_font arg for specifying an alternative font.