code: public void put(final String aBucket, final String aKey, final Buffer aBuffer,
              final Handler<HttpClientResponse> aHandler) {
          createPutRequest(aBucket, aKey, aHandler).end(aBuffer);
      }
docs: Direct asynchronous PUT call.
  <p>
  <code>PUT (bucket, key, data) -&gt; handler(Response)</code>
  </p>
  
  @param aBucket An S3 bucket
  @param aKey An S3 key
  @param aBuffer A data buffer
  @param aHandler A response handler