Sessions - deprecated getter for expireDelta

[Lumeriol]

Version: 4.0-dev

Bug Description

There is similar problem with deprecated reading from Session section as nette/application#314

Steps To Reproduce

Set cookie with expiration (i. e. login form)

Possible Solution

Change this line of code:

security/src/Bridges/SecurityHttp/SessionStorage.php

Line 148 in d465cb6

$section->set('expireTime', time() + $section->expireDelta); // sliding expiration

to

 $section->set('expireTime', time() + $section->get('expireDelta')); // sliding expiration