Enabled EC Parameters support

- Updated Api to enabled EC Parameters
- Updated Tests
- Updated Logging Manager
- Added a feature to do validation on accessors.

lib/PayPal/Api/Transactions.php

@@ -8,26 +8,30 @@ use PayPal\Rest\ApiContext;
 /**
  * Class Transactions
  *
+ * 
+ *
+ * @package PayPal\Api
+ *
  * @property \PayPal\Api\Amount amount
  */
 class Transactions extends PPModel
 {
     /**
-     * Set Amount
+     * Amount being collected.
+     * 
      *
      * @param \PayPal\Api\Amount $amount
-     *
+     * 
      * @return $this
      */
     public function setAmount($amount)
     {
         $this->amount = $amount;
-
         return $this;
     }
 
     /**
-     * Get Amount
+     * Amount being collected.
      *
      * @return \PayPal\Api\Amount
      */
@@ -35,4 +39,5 @@ class Transactions extends PPModel
     {
         return $this->amount;
     }
+
 }