fixing the additional of type=application/xml to content node

Yo - I think this works, but I'm getting content type attribute related JSON tests when I deploy to my iinova.  Its a bitch to debug since I have to restart repose and I've tried a few times. :-(

The same tests that are in our regression suite run fine as unit tests, so I'm doing something wrong on the deployment end.

I'll look at this tomorrow.  Here you are in case you're itching for it.