v2.2.1 Release

Improvements

• The domain name wss://openapi-ws.bitmart.com will not provide Futures 1.0 Websocket services.
  Please use the domain name wss://openapi-ws-v2.bitmart.com to access Futures 2.0 Websocket services
• Rename GlobalConst.CLOUD_WS_URL to GlobalConst.CLOUD_SPOT_WS_PUBLIC_URL
• Rename GlobalConst.CLOUD_WS_PRIVATE_URL to GlobalConst.CLOUD_SPOT_WS_PRIVATE_URL
• Rename GlobalConst.CLOUD_CONTRACT_WS_URL to GlobalConst.CLOUD_FUTURES_WS_PUBLIC_URL
  and change the value from wss://openapi-ws.bitmart.com/api?protocol=1.1 to wss://openapi-ws-v2.bitmart.com/api?protocol=1.1
• Rename GlobalConst.CLOUD_CONTRACT_WS_PRIVATE_URL to GlobalConst.CLOUD_FUTURES_WS_PRIVATE_URL
  and change the value from wss://openapi-ws.bitmart.com/user?protocol=1.1 to wss://openapi-ws-v2.bitmart.com/user?protocol=1.1
• Upgrading dependencies with vulnerabilities
  • remove org.bouncycastle:bcprov-jdk15on:1.70