Fixing handling of PPConnectionException in sample code

sample/payments/CreatePaymentUsingSavedCard.php

@@ -70,7 +70,7 @@ $payment->setTransactions(array($transaction));
 // The return object contains the status;
 try {
 	$payment->create($apiContext);
-} catch (\PPConnectionException $ex) {
+} catch (PayPal\ExceptionPayPal\Exception\PPConnectionException $ex) {
 	echo "Exception: " . $ex->getMessage() . PHP_EOL;
 	var_dump($ex->getData());	
 	exit(1);
@@ -85,4 +85,4 @@ try {
 	<pre><?php var_dump($payment->toArray());?></pre>
 	<a href='../index.html'>Back</a>
 </body>
-</html>
+</html>