paypro: better extension parsing with more debugging.
paypro: better extension parsing with more debugging.

bankonme/bitcore-payment-protocol,bitpay/bitcore-payment-protocol,Bitcoinsulting/bitcore-payment-protocol,bitpay/bitcore,bitpay/bitcore-payment-protocol,martindale/bitcore,braydonf/bitcore-payment-protocol,bitpay/bitcore,bitpay/bitcore,MonetaryUnit/bitcore-payment-protocol,MonetaryUnit/bitcore-payment-protocol,braydonf/bitcore-payment-protocol,bankonme/bitcore-payment-protocol,bitjson/bitcore,Bitcoinsulting/bitcore-payment-protocol,bitjson/bitcore,martindale/bitcore,bitjson/bitcore,bitpay/bitcore,martindale/bitcore,bitjson/bitcore,martindale/bitcore