This will sort the modules by alpha before the dashboard is pushed to the front.  This patch keeps the menu tabs stable instead of different on each user. Logging in as an admin, reseller, and user would show the tabs in different order each time do to user creation.

Fixed a small bug in the nav.php which tries to lookup a custom module config file even if no module is selected and  enabled the dashboard module for the admin user by default after installation.

* replaces " with ' where applicable