relax SVN archive

The residue user function pages now use the new documentation system.

Fix for the spin viewer window when the currently selected tree element is deleted.

The display() method now checks if the info structure is set to None.

Fix for the molecule.create user function page.

The wrong args was passed to the user function.

Improvements to the residue user function documentation.

More layout changes for the relax_data.read user function page.

Removed 2 stretchable spacers at the end of the user function page which were causing layout issues.

Add the divider, padding and spacing args to the wizard page file_selection() method.

Shifted the free file format setting GUI element to the end of the relax_data.read user function page.

Changed the sizing of the relax_data.read user function page.

The padding and spacer vars are now args to free_file_format().

This allows the caller to have more or less space.