relax SVN archive

Fix for the reporting of skipped GUI tests.

The Frame_order tests skipped because of the missing Scipy module were been labelled as system
rather than GUI tests.

Improvements to the skipped test printout from the test suite.

Now all test categories (system, unit and GUI) are printed if a module/package is missing. This
allows for better debugging.

Bug fix for the pipe editor window hiding and restoring.

All of the Pipe_editor.Show() method has been shifted into the GUI show_pipe_editor() method. This
is needed for the technique of unregistering with the observer objects when the window is closed via
a Hide() call.

Fix for the State.test_load_state_no_gui() for handling pipe bundles.

Though not caught by the test, the pipe needs to be associated with a pipe bundle to be able to
cleanly associate with a model-free analysis tab.

The GUI show_pipe_editor() method is now the place where the methods are registered with the observers.

This is a partial bug fix for the GUI tests. The hiding mechanism of the window with unregistration
requires this.

Shifted all of the observer registration and unregistration to observer_setup() in the pipe editor.

Bug fix for the GUI tests setUp() method - the observer objects must no be reset!

Improved debugging print outs for the observer objects.

The method name is now stored and included in all the observer 'debug>' printouts.

Removed the notebook tab deletion from the GUI tests tearDown() method.

This should be performed when a relax reset happens, so it is not needed in the tearDown() method
just before the reset() call. This change reveals another set of GUI bugs!

Redesign of the setUp() and tearDown() methods of the GUI tests.

This is needed as the current design does not work under MS Windows! Instead of created a new wx
app for each test (this dies in Windows as it looks like only a limited number of toolbars can be
created), only one app is created and is recycled. This design better mimics GUI usage anyway.

This change uncovers a few GUI bugs not caught by the previous design.