title: CRest / How to configure to accecpt only JSON responce
body: <p>I am using CRest to deserialize a JSON stream on Android. My first steps looks very promising.</p>
  
  <p>To get the JSON stream from the server and not the XML one I use the following construct:
  (<code>Accept: application/json</code>)</p>
  
  <pre><code>@EndPoint("http://localhost:8080/myserver/rest")
  @Param(name = "Accept", value = "application/json", dest = Destination.HEADER)
      public interface VersionService {
  
      @ConnectionTimeout(10000)
      @Path("/version")
      VersionTO getVersion();
  
  }
  </code></pre>
  
  <p>This works but it's a bit annoying to copy the "Param thing" for every service. 
  Is there a better way to configure all Services at one place only to return JSON?</p>