Lager config in app.config invalid

The `app.config` sez:

```erlang
            {handlers, [ 
                           {lager_file_backend, [ 
                               {"./log/error.log", error, 10485760, "$D0", 5}, 
                               {"./log/console.log", info, 10485760, "$D0", 5} 
                           ]} 
                       ] },
```

...but the `lager.app` sez:

```erlang
{handlers,
              [{lager_console_backend,info},
               {lager_file_backend,
                   [{file,"log/error.log"},
                    {level,error},
                    {size,10485760},
                    {date,"$D0"},
                    {count,5}]},
               {lager_file_backend,
                   [{file,"log/console.log"},
                    {level,info},
                    {size,10485760},
                    {date,"$D0"},
                    {count,5}]}]},
```