relax SVN archive

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.

Converted all of the brmb user functions to the new user function design.

All of the exp_info user functions now check for the presence of the cdp.

This allows for better user feedback.

The default list element now defaults to read only, whereas the Combo_list object defaults to not read only.

The List objects can now handle bad user input.