relax SVN archive

The wizard is now a frame rather than dialog, as this gives better focus properties.

Shifted the spin system GUI element for the analysis pages into the base class.

This will be used throughout the different analyses.

Changed the text in the spin systems field to say 'loaded and selected'.

The observer object is called by the spin viewer tree right click menu items.

The right click menu items which call user functions now call
self.gui.user_functions.notify_observers() to update all GUI elements.

The spin viewer tree methods are now refreshing the whole spin viewer rather than just the tree.

The spin viewer frame method refresh() now updates the container object as well.

Renamed the tree info() method to get_info() and fixed its operation.

Created the Mol_res_spin_tree.info() method for returning the python data of the current selection.

The borders are back in the containers of the spin viewer.

Fixes for the root, molecule, residue and spin containers.

These classes are no longer wx panels.