Route constructUrl incorrectly builds a URL on a non-standard port

[tomas-kulhanek]

Version: 3.1.4

Bug Description

If a port other than the standard port is used, Router::constructUrl returns a URL without a non-standard port in the case of an absolute route.

Steps To Reproduce

Start application on other port than 80 or 443.
Use Route //%domain%/<presenter>/<action>[/<id>]

Expected Behavior

Route::constructUrl returns a url with the same port as the one in the request

[tomas-kulhanek]

In my opinion, the problem will go down to nette/routing

and maybe duplication of #164