update hitrust test & live urls

When we noticed that successful transactions were no longer being processed through HiTrust, I reached out to their support team to see whether they had made any changes to their gateway URLs. Sure enough, they provided the updated URLs included here. 

Correspondence Below

----
From: HiTRUSTpay Tech. ServiceCenter <cybercity@hitrust.com.tw>

Thank you for using our service.
Our payment urls now are as following:
 
TEST_URL = 'https://testtrustlink.hitrust.com.tw/TrustLink/TrxReqForJava'
 
LIVE_URL = 'https://trustlink.hitrust.com.tw/TrustLink/TrxReqForJava '
 
Thanks.
 
If you got any questions, DO NOT hesitate to contact us.
Best Regards,
 
=================================
HiTRUST e-Payment Service Center
7F, NO. 200, Kang-Chien Rd, Taipei, 114, Taiwan, R.O.C.
Telephone: 886-2-2658-6000, Ext 500
Facsimile  : 886-2-2658-6063
=================================

@melari for review