update src files and synch emphasize-lines for quick_tour

Steve Piercy

2017-06-11 65a6d3a79f8fdcdd32a70888c669a8548366f7cb

 docs/quick_tour/sqla_demo/sqla_demo/models/__init__.py

@@ -58,9 +58,13 @@
    """
    settings = config.get_settings()
    settings['tm.manager_hook'] = 'pyramid_tm.explicit_manager'

    # use pyramid_tm to hook the transaction lifecycle to the request
    config.include('pyramid_tm')

    # use pyramid_retry to retry a request when transient exceptions occur
    config.include('pyramid_retry')

    session_factory = get_session_factory(get_engine(settings))
    config.registry['dbsession_factory'] = session_factory