fix(undefined `options` passed to `.get`): set default `options` value to `{}` (#115)
fix(undefined `options` passed to `.get`): set default `options` value to `{}` (#115)

This fixes stream calls without an `options` argument.  E.g.,:

```
// This used to TypeError.
// Now it returns a stream.
const stream = core.ns.po.get();
```

https://github.com/godaddy/kubernetes-client/issues/37#issuecomment-259434515
godaddy/kubernetes-client,godaddy/kubernetes-client,godaddy/kubernetes-client,godaddy/kubernetes-client