Improved (restored) backwards compatibility

For some users, recent introduction of CachedApp broke seamless backwards compatibility. If you rely on uWS::App being uWS::TemplatedApp<false> and not something else (like uWS::CachedApp<false> 😉), this release fixes your build:

    typedef uWS::TemplatedApp<false> App;
    typedef uWS::TemplatedApp<true> SSLApp;