Make DEBUG default to NO

May be turned on via Appirater.plist

Appirater.h

@@ -136,7 +136,7 @@ extern NSString *const kAppiraterReminderRequestDate;
  'YES' will show the Appirater alert everytime. Useful for testing how your message
  looks and making sure the link to your app's review page works.
  */
-#define APPIRATER_DEBUG				YES
+#define APPIRATER_DEBUG				NO
 
 @interface Appirater : NSObject <UIAlertViewDelegate> {