added get_status example, updated composer version in readme

Author: qencode-dev

README.md

@@ -13,7 +13,7 @@ PHP library for interacting with the Qencode API.
 ```json
     {
       "require": {
-        "qencode/api-client": "1.03.*"
+        "qencode/api-client": "1.05.*"
       }
     }
 ``` 

examples/get_status.php

@@ -0,0 +1,28 @@
+<?php
+require_once __DIR__ . '/../autoload.php';
+
+use Qencode\Exceptions\QencodeApiException;
+use Qencode\Exceptions\QencodeException;
+use Qencode\QencodeApiClient;
+use Qencode\Classes\TranscodingTask;
+
+//This example gets task status from main api endpoint (api.qencode.com)
+
+$api_endpoint = 'https://api.qencode.com';
+//replace with your api key
+$apiKey = 'acbde123456';
+//replace with your task token value
+$task_token = 'fd17cc37c84f1233c0f62d6abcde123';
+$status_url = $api_endpoint.'/v1/status';
+$q = new QencodeApiClient($apiKey, $api_endpoint);
+
+$params = array('task_tokens[]' => $task_token);
+$response = $q->post($status_url, $params);
+$status = $response['statuses'][$task_token];
+if ($status == null) {
+    throw new QencodeClientException('Task '. $task_token. ' not found!');
+}
+if (array_key_exists('status_url', $status)) {
+    $status_url = $status['status_url'];
+}
+print_r($status);