Arguments passed to execute() must be in a sequence

The copy_qt function wasn't passing the qt_id in a sequence, causing the following exception. This pull request fixes the issue.

    Exception on /cadmin/1136/topic_save/156 [POST] Traceback (most recent call last):
    File "/usr/lib/python2.7/dist-packages/flask/app.py", line 1504, in wsgi_app
        response = self.full_dispatch_request()
    File "/usr/lib/python2.7/dist-packages/flask/app.py", line 1264, in full_dispatch_request
        rv = self.handle_user_exception(e)
    File "/usr/lib/python2.7/dist-packages/flask/app.py", line 1262, in full_dispatch_request
        rv = self.dispatch_request()
    File "/usr/lib/python2.7/dist-packages/flask/app.py", line 1248, in dispatch_request
        return self.view_functions[rule.endpoint](**req.view_args)
    File "/opt/oasisqe/3.9/src/oasis/__init__.py", line 197, in call_fn
        return func(*args, **kwargs)
    File "/opt/oasisqe/3.9/src/oasis/views_cadmin.py", line 859, in cadmin_topic_save
        result = Setup.doTopicPageCommands(request, topic_id, user_id)
    File "/opt/oasisqe/3.9/src/oasis/lib/Setup.py", line 84, in doTopicPageCommands
        newid = DB.copy_qt_all(qtid)
    File "/opt/oasisqe/3.9/src/oasis/lib/DB.py", line 941, in copy_qt_all
        newid = copy_qt(qt_id)
    File "/opt/oasisqe/3.9/src/oasis/lib/DB.py", line 974, in copy_qt
        qt_id)
    File "/opt/oasisqe/3.9/src/oasis/lib/DB.py", line 44, in run_sql
        res = conn.run_sql(sql, params, quiet=quiet)
    File "/opt/oasisqe/3.9/src/oasis/lib/Pool.py", line 51, in run_sql
        rec = cur.execute(sql, params)
    TypeError: 'int' object does not support indexing