relax SVN archive

Added headers for the molecule and the residue containers of the spin view window.

The spin container header is now created in the spin view window.

Better borders in the container windows.

Added some content to the spin container window, including a graphic and a dividing line.

Scripts given by the user on the command line will now be executed within the GUI.

Only *.py files can be opened by the script user function GUI element.

Clean up of the mol, res, spin container window code - the window items are no longer stored.

The contents of the mol, res, spin container windows is now properly cleared out.

The spin container window now contains a graphic.

The mol, res, spin container window is now properly cleared each time a new tree item is selected.