title: json_object_to_json_string returns value WITHOUT quotes in 'c'
body: <p>I am attempting something that should be simple.  I want to capture a value from a Mongo returned JSON and verify the value is what I am expecting.  To do this I am using json_object_to_json_string to return a string value of the json output.</p>
  
  <p>The problem is the string is being returned with double-quotes surrounding the value:  EX "562416504bacd3940b8b2d5c" is returned instead of 562416504bacd3940b8b2d5c.</p>
  
  <p>This then prevents me from being able to do a simple if match (see below).</p>
  
  <p>Is there anyway to get the json value without the annoying double-quotes?</p>
  
  <pre><code>struct json_object *new_obj;
  
  // Fetch document
  while (mongoc_cursor_next (cursor, &amp;doc)) 
  {
  char *docAsJSON = bson_as_json (doc, NULL);
  
  // Grab account_id from session table
  new_obj = json_tokener_parse(docAsJSON);
  new_obj = json_object_object_get(new_obj, "account_id");
  char * account_id_fromSession = json_object_to_json_string(new_obj);
  
  if (strcmp(account_id,account_id_fromSession) == 0)
      {
      printf("\nids are the same\n\n");
      }
  else
      {
      printf("\nids are NOT the same %s %s\n\n",account_id,account_id_fromSession);
      }   
  </code></pre>
  
  <p>Output of code:</p>
  
  <pre><code>ids are NOT the same 562416504bacd3940b8b2d5c "562416504bacd3940b8b2d5c"
  </code></pre>