Fix happy side effectss on domain setup (#372)

lib/alias.js

@@ -96,7 +96,7 @@ module.exports = class Alias extends Now {
   }
 
   async updatePathBasedroutes(alias, rules) {
-    await this.maybeSetUpDomain(alias)
+    alias = await this.maybeSetUpDomain(alias)
 
     return await this.upsertPathAlias(alias, rules)
   }
@@ -240,7 +240,7 @@ module.exports = class Alias extends Now {
       }
     }
 
-    await this.maybeSetUpDomain(alias)
+    alias = await this.maybeSetUpDomain(alias)
 
     const newAlias = await this.createAlias(depl, alias)
     if (!newAlias) {
@@ -531,6 +531,7 @@ module.exports = class Alias extends Now {
 
       console.log(`> Verification ${chalk.bold('OK')}!`)
     }
+    return alias
   }
 
   verifyOwnership(domain) {