relax SVN archive

Fix for the auto-generated user functions - the argument defaults are now properly set.

Created the align_tensor.get_ids() method for use in the GUI wizards.

This will be required for the auto-generated user function GUI front ends.

The pipe.copy pipe_from wizard element is now read only.

The previous commit (r16010) did not work - this fixes it.

Fix for the Base_value wizard page GUI elements.

The 'default' element_type argument value was not handled properly. Now it is converted to 'text'.

The user function intro is now printed out before the argument checking.

This is for better user feedback.

The pipe editor window now uses the auto-generated pipe user function GUI objects.

Fix for the Selector_bool GUI element - the GetValue() method was faulty and always returning None.

The user function backend and title values are now enforced.

If these are not set, a RelaxError is thrown. This should avoid fatal coding accidents.

Fix for the bmrb.write user function - the back end is now specified.