paypro: fix browser paypro. TODO: fix parsing DER certs.
paypro: fix browser paypro. TODO: fix parsing DER certs.

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