Paypal Standard Security Enhancer

Description
This contribute Paypal Standard Security Enhancer as Opencart plugin to act as Paypal standard gateway WatchGuard. It has added additonal filtered to authenticate the transaction such as paypal payer email enforcement, ip blacklist blocking, checkout total and quantity. If the transaction happens to fall under above mention filter, system will trigger an notification email(Paypal e-mail) to customer and store admin. Customer may need to input the authorization code to complete the transaction. The module is very useful especially to digital seller as it add additonal layer to prevent order status to change to complete status to avoid files being downloaded. No files overwritten is required as it is running in vQmod environment.  

Features
* Fully automation once filter is setup
* Auto email notification to store admin and Paypal payer email 
* Informative email alert to store admin once system detected fraudulent transaction 
* Require end customer to interact with system to complete the transaction by entering authentication code
* Paypal payer email, customer ip blacklist blocking, checkout total and quantity filtering system