Updated version of SDK Core

- Updated sample to not use its own composer.json

sample/bootstrap.php

@@ -4,12 +4,15 @@
  */
 
 // Include the composer autoloader
+// The location of your project's vendor autoloader.
 $composerAutoload = dirname(dirname(dirname(__DIR__))) . '/autoload.php';
 if (!file_exists($composerAutoload))
 {
-    $composerAutoload = __DIR__ .'/vendor/autoload.php';
+    //If the project is used as its own project, it would use rest-api-sdk-php composer autoloader.
+    $composerAutoload = dirname(__DIR__) .'/vendor/autoload.php';
 
-    if(!file_exists(__DIR__ .'/vendor/autoload.php')) {
+
+    if(!file_exists($composerAutoload)) {
         echo "The 'vendor' folder is missing. You must run 'composer update' to resolve application dependencies.\nPlease see the README for more information.\n";
         exit(1);
     }