Updating samples to use dynamic SDK configuration

sample/sdk_config.ini

@@ -1,9 +1,16 @@
+
+
+## This is an example configuration file for the SDK.
+## The sample scripts configure the SDK dynamically
+## but you can choose to go for file based configuration 
+## in simpler apps (See bootstrap.php for more).
+
+
 ;Connection Information
 [Http]
 http.ConnectionTimeOut = 30
 http.Retry = 1
-;http.Proxy=http://[username:password]@hostname[:port][/path]
-
+;http.Proxy=http://[username:password]@hostname[:port]
 
 ;Service Configuration
 [Service]
@@ -23,4 +30,4 @@ 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
-log.LogLevel=FINE
+log.LogLevel=FINE