message: Fix bitpay test-net btc api link;
diff: export default {
  blocktrail: 'https://api.blocktrail.com/v1/tBTC',
  - bitpay: 'https://test-insight.swap.online/insight-api',
  + bitpay: 'https://test-insight.bitpay.com/api',
  etherscan: 'https://rinkeby.etherscan.io/api',
  bch: 'https://bch-insight.bitpay.com/api',
  ltc: 'https://testnet.litecore.io/api',
  