Setting fixturesFolder to false throws error that prevents server from starting

[chrisbreiding]

In a new project with the following cypress.json:

{
  "fixturesFolder": false
}

[jennifer-shehane]

The code for this is done, but this has yet to be released. We'll update the issue and reference the changelog when it's released.

[brian-mann]

Fixed in 0.20.0