relax SVN archive

The user function 'gui_sync' attribute is now passed all the way into the GUI uf objects.

The Uf_container now has the 'gui_sync' variable for switching between asynchronous and synchronous operation.

Converted the reset user function to the auto-generation design.

A fast and dirty wizard graphic was also added for the user function.

Converted the residue user functions to the auto-generation design.

Created an icon for the relax_fit user function class.

Converted the relax_fit user functions to the auto-generation design.

Converted the rdc user functions to the auto-generation design.

Fix for the pymol and molmol macro_write user functions - the file name can be None!

Fixes and clean up of the pcs user functions.

Removed the old __docformat__ module variable.