Patched PayPal Express Checkout and IPN module ... for v1.3.7

[DrByte]

Patch Issued Feb 28 2007

This patch attempts to fix non-American customer address submission issues which were resulting in 81108-ShipToState errors.
Also improves upon the Alerts Only debug option in some cases.
Also now handles & and = symbols more effectively so as to prevent PayPal from croaking if they are found in address or product-name details.

If you have already applied the Feb 19 patch, then there is no need to "remove" and "install" the module in the Admin to activate this patch. (ie: if you have the "Alerts Only" option available under Debug Settings, then you don't need to remove and re-install. Just update the files: )

Changed files since Feb 20 patch include:
- /includes/modules/payment/paypal/paypal_functions.php
- /includes/modules/payment/paypal/paypal_curl.php
- /includes/modules/payment/paypal.wpp

(Yes, for those of you wondering, this patch is cumulative of all patches in this thread. You do not need to install each one individually ... just the most recent. That includes remove+re-install of the module in the Admin, as indicated).