Allow the user to specify hostname to listen on

[jkseppan]

I suggested this in #16 (comment)

[zefhemel]

Looks good! My only question is if hostname the right term. Maybe bind IP or simply an --ip flag instead?

[zephraph]

Hostname matches what oak expects to be passed.

silverbullet/server/http_server.ts

Line 131 in 0c966e5

this.app.listen({ hostname: this.hostname, port: this.port, signal: this.abortController.signal })

I'd also say --hostname should be understood to be includes of explicit IPs whereas --ip would likely not. Probably isn't really a big deal either way so long as it's documented.

[zefhemel]

Good point. Alright. Merging this, thanks a lot!