relax SVN archive

Missing imports!

The specific analysis API base return_data_desc() now has a basic implementation.

This will search through the global and then spin parameters objects, returning what ever is found.

The specific analysis API base method calls to RelaxImplementError now send in the function name.

This allows for better identification of what needs to be implemented.

The specific analysis base API default_value() method is now functional.

Rather than raising a RelaxImplementError, this method now searches in the global parameters then
the spin parameters for a default value.

This should have been part of r16460!

This matches the J(w) mapping changes of r16458.

Removed a debugging print out.

Shifted out the interpreter components of the J(w) mapping tests into scripts.

This allows the tests to work in the GUI test framework.

Converted the consistency tests script to the new _execute_uf() design.

This allows it to work with the GUI for the GUI tests.

Fix for the recycling of user function wizards for when a wizard fails.

In certain cases (relax bugs), the creation of the user function wizard will fail half way through.
The next time the user function is called, the half made page will be called and an error will
occur. This occurs in often in the test suite, resulting in many normally passing tests failing
after an earlier test fails.