Fix ArrayNode

[bboure]

Hi,

Thanks again for starting this, this is package really useful.

Here are few fixes for issues I came across:

• Empty arrays should just be resolved as empty arrays

• Fix an issue with multiple arguments in the logger not being output
  e.g.: super.log('Eval:', 'foo/bar'); => foo/bar was not printed.

• Added some defaults when params/resolvers are not passed

I also removed

"type": "module",

from package.json as I was always getting this error:

Warning: require() of ES modules is not supported.

This package does not seem to be modular anyway.
Let me know if you feel this is wrong.

If you want to have a look at how I use this package, please have a look here.

[robessog]

Thank you for the PR and the fixes. The code change looks good to me and you even covered the empty array case with unit test which is awesome.

[bboure]

Thanks!