gofigure fails to start when NODE_ENV isn't set

[tim-kretschmer-c2fo]

Ran into the following problem with Ubuntu + IntelliJ IDEA.

Repro

1. Set NODE_ENV in bash profile
2. Verify that the value is set from terminal
3. Launch IDEA
4. Launch a Run configuration from within the IDE

Expect

Either the targeted script runs, or gofigure reports that NODE_ENV isn't set.

Actual

Errors are listed in the console that the first config property being accessed is undefined.

This specifically happened with IDEA since it doesn't create a user's session in bash, which leaves out variables set in the user's profile.

[tim-kretschmer-c2fo]

Two thoughts on this.

1. check to see if NODE_ENV is set, and error out with a message if it isn't
2. automatically pull in default configs when NODE_ENV isn't set