Fix GLOBALS reference

Author: bartonhammond

lib/globals.php

@@ -5,9 +5,9 @@
 $GLOBALS['CONFIG'] = json_decode(file_get_contents($config_file), true);
 
 $GLOBALS['BROWSERSTACK_USERNAME'] = getenv('BROWSERSTACK_USERNAME');
-if(!$GLOBALS['BROWSERSTACK_USERNAME']) $GLOBALS['BROWSERSTACK_USERNAME'] = $CONFIG['user'];
+if(!$GLOBALS['BROWSERSTACK_USERNAME']) $GLOBALS['BROWSERSTACK_USERNAME'] = $GLOBALS['CONFIG']['user'];
 
 $GLOBALS['BROWSERSTACK_ACCESS_KEY'] = getenv('BROWSERSTACK_ACCESS_KEY');
-if(!$GLOBALS['BROWSERSTACK_ACCESS_KEY']) $GLOBALS['BROWSERSTACK_ACCESS_KEY'] = $CONFIG['key'];
+if(!$GLOBALS['BROWSERSTACK_ACCESS_KEY']) $GLOBALS['BROWSERSTACK_ACCESS_KEY'] = $GLOBALS['CONFIG']['key'];
 
 ?>