Bunyan can not be supported in Node versions > 8.9.1 (119)

[g-sam]

As described in nodejs/node#16949 (comment) since node-config does a deep clone of the config object, if bunyan is the configured logger, it leads to access of e.g. _handle.__proto__.bytesRead which, depending on your Node version, returns undefined (8.8.1 and lower), segfaults (8.9 and higher) or throws (8.9.2 and higher).

This doesn't happen with winston as the configured logger, so it's possible that bunyan could do something about the way they expose/not expose stdout/stdin in the exported object. Opened an issue at bunyan HQ: trentm/node-bunyan#571

More information here:
nodejs/node#17636
nodejs/node#16482
nodejs/node#16860

Tracking: https://gitlab.coko.foundation/pubsweet/pubsweet/issues/119