relax SVN archive

Updated the model-free auto-analysis GUI test for the new user function design.

A number of fixes for the BMRB GUI test for the new user function design.

This GUI test now passes.

The Value GUI element as a ComboBox can now handle input values which are not in the list.

This allows user functions with the 'wiz_combo_choices' arg arg set and the 'wiz_read_only' arg arg
of False to function. This is for the user to select from a list of pre-defined defaults, or input
their own value.

The GUI tests base execute_uf() method now runs all user functions in synchronous mode.

In combination with the previous gui_raise() change, this allows the GUI tests to actually fail when
a RelaxError occurs.

The gui_raise() function now simply re-raises the RelaxError when in test mode.

This allows the GUI test to properly fail.

Missing import required for temporary file deletion.

Removed all of the dir user function args in the BMRB GUI test.

These need to be part of the file argument, as the file and dir args are merged into one GUI
file selection element.

The Combo_list GUI input element SetValue() method now handles single values and lists.

This is required for the GUI tests.

The ComboBox data values are now set to the choices in the __init__() method if not given.

This is required by the GUI tests, as the ResetChoices() method which does the same thing has not
been called.

Shifted the combo_list GUI element into the gui.input_elements package.