relax SVN archive

Improved debugging of the observers in the status singleton object.

The Status_container has been renamed to Observer_container and the info() method added to print out
everything about the observer objects. This has to be called in temporary debugging code.

Debugging print out fix.

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!