Incompatible with serverless from version 1.33

[tmaslen]

When running with version 1.33 and over the serverless process exits killing the local server.

This means the express instance is stopped and nothing is bound to the port.

Must be a change in the plugin architecture?

https://github.com/serverless/serverless/releases/tag/v1.33.0

[tmaslen]

This is a hard problem to work out as serverless is installed globally I'd not upgraded it for over 6 months.

I've only discovered this as I've had to rebuild my development environment.