please support env variables GOOSEBERRY_NAME and GOOSEBERRY_API

[jonassmedegaard]

Gooseberry supports passing a custom config. Great, that means I can have a setup specific to a research project of mine.
Unfortunately it won't work however, because I work collaboratively, and the config would need to contain my personal credentials.

Please support env variables GOOSEBERRY_NAME and GOOSEBERRY_API, which when set is used instead of consulting the corresponding config values.