R1:2b12f6160213

Don't exit from the Aphlict Server prematurely

Summary: By calling `process.exit(1)` we are forcing the Node.js process to exit prematurely. Specifically, the process is terminated before the error is written to the log file. This can be verified by inspecting the value of `debug._logs[0]._writableState.writing` immediately before the process is terminated.

Test Plan: Ran `./bin/aphlict debug` without the `ws` module being installed. Verified that `<<< UNCAUGHT EXCEPTION! >>>` was echoed to the console…