def put(path, body = nil, ctype = 'application/json')
      make_call(mk_conn(path,  'Content-Type': ctype,
                               'Accept': 'application/json'),
                :put, nil, body.to_json)
    end
def put(path, body = nil, ctype = 'application/json')
      make_call(mk_conn(path,  'Content-Type': ctype,
                               'Accept': 'application/json'),
                :put, nil, body.to_json)
    end
Make a PUT call to the Wavefront API and return the result as
 a Ruby hash.

 @param path [String] path to be appended to the
   #net[:api_base] path.
 @param body [String] optional body text to post
 @param ctype [String] the content type to use when putting
 @return [Hash] API response