Add dropdown with User login, logout into menu.
This code used to replace "nav.php" in theme "QuickStrap" in XLfxs.com
It will add a menu to your navigation menu
Needs to have the theme "QuickStrap" installed (or any bootstrap -based theme) and Font-Awsome v4.7 (latest we have now)
That theme came in with nav.php in the theme folder, I modified it using Appearance --> Editor