Fixed a fresh install bug that wasn't using composer installs.

Fixed a cloud file download bug where it was downloading the wrong track.
Working on amazon s3 signed urls for private objects.
Added cloud storage configuration to install script.

airtime_mvc/application/modules/rest/controllers/MediaController.php

@@ -236,6 +236,7 @@ class Rest_MediaController extends Zend_Rest_Controller
                 $cloudFile->save();
                 
             //file is stored locally
+            //we should get rid of this since we're removing local file storage
             } else if (isset($requestData["full_path"])) {
                 $fileSizeBytes = filesize($requestData["full_path"]);
                 if ($fileSizeBytes === false)