entropy fails to start with an empty config

[frankiebee]

          side note: always failing now. my guess is because i have an empty config

Originally posted by @frankiebee in #244 (comment)

We should fail gracefully. This error is not that

undefined:1


SyntaxError: Unexpected end of JSON input

[rh0delta]

@frankiebee retested this on the dev branch and am not running into this error. this may have been silently fixed with the recent changes made. even tested with removing the entire ~/.../entropy-cryptography directory, and still did not run into the error described above.