I added auto BitcoinDark.conf generation today to the test repo.

Matthew
Is that why I didn't need to do anything special on the most recent Mac wallet download I tested today?
No, I only updated the source code. Haven't released a binary as it's still in development.
I'm thinking we'll just have a list of trusted, donation-funded nodes hardcoded into the source. If you don't have a BitcoinDark.conf, it will automatically create it for you and generate a random rpcpassword.