Merge pull request thephpleague#294 from imsqiu/master

Add UnionPay Gateway

Author: greydnls

README.md

@@ -150,6 +150,7 @@ Gateway | Composer Package | Maintainer
 [Skrill](https://github.com/alfaproject/omnipay-skrill) | alfaproject/omnipay-skrill | [João Dias](https://github.com/alfaproject)
 [Stripe](https://github.com/thephpleague/omnipay-stripe) | omnipay/stripe | [Kayla Daniels](https://github.com/kayladnls)
 [TargetPay](https://github.com/thephpleague/omnipay-targetpay) | omnipay/targetpay | [Alexander Deruwe](https://github.com/aderuwe)
+[UnionPay](https://github.com/lokielse/omnipay-unionpay) | omnipay/lokielse-unionpay | [Loki Else](https://github.com/lokielse)
 [Wirecard](https://github.com/igaponov/omnipay-wirecard) | igaponov/omnipay-wirecard | [Igor Gaponov](https://github.com/igaponov)
 [WorldPay](https://github.com/thephpleague/omnipay-worldpay) | omnipay/worldpay | [Kayla Daniels](https://github.com/kayladnls)
 [WorldPay XML Direct](https://github.com/teaandcode/omnipay-worldpay-xml) | teaandcode/omnipay-worldpay-xml | [Dave Nash](https://github.com/teaandcode)

composer.json

@@ -114,6 +114,7 @@
         "igaponov/omnipay-wirecard": "Wirecard",
         "justinbusschau/omnipay-secpay": "SecPay",
         "lokielse/omnipay-alipay": "Alipay",
+        "lokielse/omnipay-unionpay": "UnionPay",
         "mfauveau/omnipay-nmi": "Network Merchants Inc. (NMI)",
         "mfauveau/omnipay-pacnet": "Pacnet",
         "omnipay/payu": "PayU",