Multiple aliases during deploy (#202)
Multiple aliases during deploy (#202)

A small superficial change to bin/now-deploy.js so that we can specify one or more aliases whilst deploying.

**Examples**

```
now --alias a.com
now --alias a.com --alias b.com
```

We handle the alias assignment serially so that the CLI output makes sense.

**Some thoughts**

 - I’m hoping this PR can close out #172
 - Aware this PR likely affects #68
 - This is a superficial change, really we should update the lib/alias.js to handle multiple domains
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