Update done automatically by greenkeeper broke Bitfinex support.

[redknightlois]

System information

• Yes, custom strategies
• Windows and Linux
• latest
• Unstable

Describe the problem

Bitfinex update done automatically by greenkeeper broke the exchange support.
3486505
The new library (v2.0) is subtly different.

Source code / Error logs

server_1        | TypeError: Cannot read property 'constructor' of null
server_1        |     at new BFX (/app/node_modules/bitfinex-api-node/index.js:31:14)
server_1        |     at publicClient (/app/extensions/exchanges/bitfinex/exchange.js:26:41)
server_1        |     at Object.getTrades (/app/extensions/exchanges/bitfinex/exchange.js:441:22)
server_1        |     at getNext (/app/commands/backfill.js:82:18)
server_1        |     at /app/commands/backfill.js:66:9
server_1        |     at result (/app/node_modules/mongodb/lib/utils.js:414:17)
server_1        |     at executeCallback (/app/node_modules/mongodb/lib/utils.js:406:9)
server_1        |     at handleCallback (/app/node_modules/mongodb/lib/utils.js:128:55)
server_1        |     at cursor.close (/app/node_modules/mongodb/lib/operations/cursor_ops.js:211:62)
server_1        |     at handleCallback (/app/node_modules/mongodb/lib/utils.js:128:55)
server_1        |     at completeClose (/app/node_modules/mongodb/lib/cursor.js:893:14)
server_1        |     at _endSession (/app/node_modules/mongodb/lib/cursor.js:904:37)
server_1        |     at Cursor._endSession (/app/node_modules/mongodb-core/lib/cursor.js:194:5)
server_1        |     at Cursor._endSession (/app/node_modules/mongodb/lib/cursor.js:226:59)
server_1        |     at Cursor.close (/app/node_modules/mongodb/lib/cursor.js:904:19)
server_1        |     at cursor._next (/app/node_modules/mongodb/lib/operations/cursor_ops.js:211:23)
server_1        |     at handleCallback (/app/node_modules/mongodb-core/lib/cursor.js:203:5)
server_1        |     at _setCursorNotifiedImpl (/app/node_modules/mongodb-core/lib/cursor.js:561:38)
server_1        |     at self._endSession (/app/node_modules/mongodb-core/lib/cursor.js:569:46)
server_1        |     at ClientSession.endSession (/app/node_modules/mongodb-core/lib/sessions.js:129:41)
server_1        |     at Cursor._endSession (/app/node_modules/mongodb-core/lib/cursor.js:189:13)
server_1        |     at Cursor._endSession (/app/node_modules/mongodb/lib/cursor.js:226:59)