Commented Issue: Return 415 if there is a body parameter and no formatter can read the body [843]

This could happen if the content type is not specified in the request or if there is no formatter that can handle the specified content-type.

we should return a 415 in these cases.


Comments: No content type is dup of issue 281. But if there is content type but we can't find a formatter for it, we should send back 415 by default.