Adding lists is broken

[andreas-gruenbacher]

jsondiff.diff([null], [[1]]) should result in:
[{"op":"add","path":"/0","value":[1]}]

But it actually results in:
[{"op":"add","path":"/0/0","value":1},{"op":"replace","path":"/0","value":[1]}]

[andreas-gruenbacher]

Note that I've stopped trying to make this project work for me after looking at the code a bit more closely; I've rewritten it instead.