CC-2873: Soundcloud plugin doesn't log any error when there is an

error with soundcloud uploading through api controller

- changed constant name to 'SOUNDCLOUD_NOT_UPLOADED_YET'

airtime_mvc/application/configs/constants.php

@@ -37,6 +37,6 @@ define('UI_PLAYLIST_SESSNAME', 'PLAYLIST');
 
 
 // Soundcloud contants
-define('SOUNDCLOUD_NULL', -1);
+define('SOUNDCLOUD_NOT_UPLOADED_YET', -1);
 define('SOUNDCLOUD_PROGRESS', -2);
 define('SOUNDCLOUD_ERROR', -3);