2016-12-14
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* Add authentication though parameters for methods:
 - Ping request;
 - Payment method list;
 - Reporting Details;
 - Create token;
 - Get token;
 - Remove token;

2016-12-14
----------
* Add authentication though parameters for methods:
 - Ping request;
 - Payment method list;
 - Reporting Details;
 - Create token;
 - Get token;
 - Remove token;

* Add support for partial refund

Update log with partial refund change
Update log with partial refund change
