Vercel: `--config` should be used for the local `now.json`, not the global `.now.json`

[leo]

In my opinion, we don't need to introduce another flag again for the global .now.json file (--config is being used for that at the moment) because we already have -t for specifying the token...

[jonscottclark]

Nice :) Looking forward to this as I build two different versions of my project and want to deploy them to different endpoints.

[jamo]

Who not to introduce a new flag for the project configuration containing now.json
Anyways, we should support flags for defining both now.json files. The one with auth and the one with project preferences.

[leo]

The question is: Why for the global one? Having two flags for setting config files will be really confusion, no matter how we'll call them.