relax SVN archive

Created the bool_to_gui() function.

Created the wizard page method boolean_selector() for creating a GUI element for bool selection.

Missing imports of _build_doc()

The deselect user functions now all have documentation created via _build_doc().

Fixes for the select user function docstrings.

The select user functions now have docstrings built by _build_doc().

Added all the select and deselect user functions to the menu.

The molecule, residue and spin bitmaps in the spin viewer window are now updated on a selection change.

The set_bitmap_mol(), set_bitmap_res() and set_bitmap_spin() methods have been created to set the
images on demand, and the update_*() methods call this for new molecules, residues and spins or when
their state changes.

Deselected molecules, residues and spins are now shown in grey in the spin viewer window.

The grey icons are now in the paths module.