Enabled EC Parameters support

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

sample/sdk_config.ini

@@ -21,13 +21,23 @@ mode=sandbox ; can be set to sandbox / live
 
 log.LogEnabled=true
 
-# When using a relative path, the log file is created
-# relative to the .php file that is the entry point
-# for this request. You can also provide an absolute
-# path here
+; When using a relative path, the log file is created
+; relative to the .php file that is the entry point
+; for this request. You can also provide an absolute
+; path here
 log.FileName=../PayPal.log
 
-# Logging level can be one of FINE, INFO, WARN or ERROR
-# Logging is most verbose in the 'FINE' level and
-# decreases as you proceed towards ERROR
+; Logging level can be one of FINE, INFO, WARN or ERROR
+; 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