relax SVN archive

The state.load user function will now recreate the GUI tabs.

For this, the new state_load observer object has been created. The GUI analysis load_from_store()
is registered with this object. And to prevent fatal racing in the GUI, the state.load user
function operation is now synchronous. The state.load and state.save file arg defaults are now also
set to 'state.bz2'.

Fix for the GUI tests - the ds.tmpfile string is now being created by the base setUp() method.

This is needed to stop files from being created within the relax directory tree.

Removed a printout in the API documentation compilation.

Epydoc docstring fixes.

Import fix.

All of the user_function.object.Table instances in the specific code descriptions are now private.

This hides them from the specific API, and allows the unit tests to pass.

Fix for the prompt UI tables in the help strings for when there is no spacing between rows.

The indexing has changed due to the structure of the user_functions.objects.Table class.

Removed the vertical lines in the tables of the prompt UI help strings.

The tables now look much more professional!

The GUI user functions now use the new Desc_container and Table user function classes.

The descriptions for the user function wizard pages are now being taken from the new
user_functions.objects.Desc_container objects, lists of which are the user function definition
'desc' objects. The tables via the user_functions.objects.Table object is being formatted as in the
prompt user function help text, though without vertical lines. The lists and itemised lists are
currently formatted the same as in the prompt UI.

The Desc_container.element_loop() method can now yield the title too, if asked.