bump AVA and use async functions to simplify tests

[sindresorhus]

Async functions simplifies the test flow a lot.

Btw, what Terminal did you use in the screenshot in the readme?

[pmdartus]

Thanks @sindresorhus for the improvement. I have seen the comments on the commits, I will do the changes.

I am using iTerm. I just put the terminal over a white background and took the screenshot. I have seen the same effect on another repo (I don't remember where), and I wanted to reproduce it. 😄

[sindresorhus]

Sorry, meant to ask: What terminal theme are you using?

Btw, you can take a screenshot with transparency, just press Shift+Command+4, then Space, and then click the window you want to capture ;)

[pmdartus]

I don't remember the base theme name, but I changed it a little. Here is the color scheme: color.itermcolors.zip

Thanks for the screenshot tip !