Add --hostname argument to cli

[jessehattabaugh]

In Cloud9 http servers have to be run with the hostname 0.0.0.0. The cli always starts on localhost.

[arunoda]

You can use our custom server for that.
See: https://github.com/zeit/next.js#custom-server-and-routing

[jessehattabaugh]

I could, but wouldn't it be nice to have an argument like how firebase-tools and other dev servers do? Here's a PR I made, but haven't tested yet because your build process is kinda strange to me. #1017

[arunoda]

Yeah. That's good too.
I saw your PR. Let's take it.

[rauchg]

-H too?

[jessehattabaugh]

I changed it to -H

[timneutkens]

Fixed in #1017

[jessehattabaugh]

Woo hoo! Thanks y'all!