Enabled Billing Plans and Agreements APIs

- Added API Classes, Samples, and Tests
- Updated Functional Tests
- Updated Documentation with new SDK Name
- Updated Few Samples to use newer nicer result page

tests/PayPal/Test/Api/CreditCardHistoryTest.php

@@ -44,8 +44,8 @@ class CreditCardHistoryTest extends \PHPUnit_Framework_TestCase
     {
 
         $card = self::createCreditCard();
-        $card->setBillingAddress(AddressTest::createAddress());
-        $card->setLinks(array(LinksTest::createLinks()));
+        $card->setBillingAddress(AddressTest::getObject());
+        $card->setLinks(array(LinksTest::getObject()));
         $this->cards['full'] = $card;
 
         $card = self::createCreditCard();
@@ -73,4 +73,4 @@ class CreditCardHistoryTest extends \PHPUnit_Framework_TestCase
 
         $this->assertEquals($cardHistory, $cardHistoryCopy);
     }
-}
+}