relax SVN archive

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.

Created the Container wx.Window class for displaying the mol, res, or spin container information.

This is part of the spin view window.

Changed the binding of wx.EVT_LEFT_DOWN to wx.EVT_TREE_SEL_CHANGED for selecting tree containers.

Fix for the Mol_res_spin_tree class - the GUI wx object was not being passed in.

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