Wildcard subdomain full support | v3.0.0-beta.2

Update to v3.0.0-beta.2.
Wildcard subdomain e-book section:
https://kataras.gitbooks.io/iris/content/subdomains.html

route.go

@@ -240,6 +240,7 @@ func (r *Route) GetURI(args ...interface{}) (uri string) {
 	}
 
 	host := r.host
+
 	if parsedPath, ok := r.Parse(args...); ok {
 		uri = scheme + host + parsedPath
 	}