[now dev] Don't add `.gitignore` to the ignore list (#2025)
[now dev] Don't add `.gitignore` to the ignore list (#2025)

`.gitignore` is not respected anymore for Now v2, so this was a bug.

Also removes `ncc` and `user` from the ignore list, since that issue was
fixed a while back as well.

Fixes #2021.
zeit/now-cli,zeit/now-cli,zeit/now-cli,zeit/now-cli,zeit/now-cli,zeit/now-cli,zeit/now-cli