Emit api

[lmiller1990]

Add an alternative syntax for wrapper.emitted().

Also updated docs to include new syntax (ja and en).

[lmiller1990]

In response to #157 . It turned out adding the different syntax was trivial and I was overthinking it.

@eddyerburgh , I'm sure I need to add something for Typescript types somewhere for this. I'm sure you have some feedback or change requests. Please let me know!

Also perhaps @kazupon will check the Japanese translation.

[kazupon]

LGTM 👍 Translation 🌐

[lmiller1990]

Thanks @kazupon .

Also for some reason createLocalVue Router should work properly with local Vue was failing locally, but it passes on the CI. Eh.

[eddyerburgh]

Are you able to add types? They're in the types/index.d.ts https://github.com/vuejs/vue-test-utils/blob/dev/types/index.d.ts

I can help you if you're stuck 😄

[lmiller1990]

I tried to add the types. I think it is just one type, the new optional event string. I haven't used typescript before, is it a big game changer? Should I be?

Let me know if I should change anything else, @eddyerburgh .