Adding multi_select.xml, which demonstrates twill cannot deal with - at the beginning of select param values - this test works immediately with API interactor.
Also adding a multi_output.xml, this is a tool using variable number of outputs (force_refresh=True), both interactors pass this but it is a good test to verify that.
Also adding example to test multi-page tools (multi_page.xml) - both interactors pass this test. Though the API needed to be adjusted to allow its use (in a previous changeset).
Also adding example tool demonstrating extra_files output.
Finally, a tool simple_constructs.xml that just tests the basics, various parameter types, simple conditional, and simple repeat.
John Chilton