Adding an app for currency conversion.

Hi,

I tried testing the app by doing the following:
$ bundle install; bundle exec ruby server.rb -p 5000
and 
$ curl localhost:5000/text -d "Body=CurrencyConverter eur to usd"
But it returns:
<pre>
<Response>
  <Sms>I'm sorry, an app with the name currencyconverter could not be found. Stay in school.</Sms>
</Response>
</pre>

Please advise on how to test this locally.

Thanks!