relax SVN archive

Left clicks on the mol, res, spin tree are now caught, but are handled in the same way as right clicks.

Shifted the oxygen icons into the graphics directory.

Updated the gui_bieri package __all__ list as it was almost completely empty.

Updated the __all__ list for the components package.

Moved the gui_bieri.components.mol_res_spin_tree module to spin_view.

Renamed the mol_res_spin_tree structure to spin_view.

Renamed the tree panel _tree_update() method to update().

The spin view window now has a splitter element and a temporary pane for spin container info.

Added a toolbar to the spin view window.

The view can now be refreshed, and any data pipe switched to.

Fix for the molecule.type() user function due to the addition of the type arg to molecule.create().

The molecule.type() user function now uses a different naming of molecules. These are translated
to BMRB names when creating BRMB deposition files.