Extended regression test for test item procs - compose exam by three exericises instead of one - added test for short-text exercise with a file submission - exam contain now a text exercise, a short-text exercise with a file submission, and a MC question - test case fills out first two questions in the test case - bumped version number due to dependency on xowiki (option "-next_page_must_contain" for "xowiki::test::edit_form_page")