add comments and doc
remove login for now
add url generator service provider + add but comment security service provider
change symfony/monolog-bridge version to ~2.3, the same as the other symfony components
create custom silex application to use traits
add customizable navigation zone in main templates
use traits
require php 5.4.0+ since we are using traits
remove bin_dir from config
use traits for translation
use twig constant() to access BASE_URL constant instead of passing it as a variable to the templates
activate the security trait since it does not require any registration of the security service provider if not used
PHP 5.3+ compatible custom application class UNTESTED