Controller should never return the body into a request with OPTIONS enabled

To reproduce the issue please follow these steps:

* Grab the sources and deploy https://github.com/abstractj/aerogear-controller-demo/tree/AEROGEAR-1257 
* curl -v -X OPTIONS "http://localhost:8080/aerogear-controller-demo/autobots"

A brief description of this issue: https://issues.jboss.org/browse/AEROGEAR-1257