Enabled EC Parameters support

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

tests/sdk_config.ini

@@ -23,7 +23,6 @@ service.EndPoint="https://api.sandbox.paypal.com"
 
 ;Logging Information
 [Log]
-
 log.LogEnabled=true
 
 ; When using a relative path, the log file is created
@@ -36,3 +35,13 @@ log.FileName=PayPal.log
 ; Logging is most verbose in the 'FINE' level and
 ; decreases as you proceed towards ERROR
 log.LogLevel=FINE
+
+;Validation Configuration
+[validation]
+; If validation is set to strict, the PPModel would make sure that
+; there are proper accessors (Getters and Setters) for each model
+; objects. Accepted value is
+; 'log'     : logs the error message to logger only (default)
+; 'strict'  : throws a php notice message
+; 'disable' : disable the validation
+validation.level=strict