add user list controller
set correct page title
add login controller
do not force login in user list
add monolog
move application controllers into app folder
clean up .gitignore
add application file structure
move app/controllers to app/routes
define model repositories in Silex application
use twig service provider
start working on proposition related routes
remove outdated info in readme
silex form service provider
twig is now a service provider
 is passed to the route callback as argument, no need to rely on the use keyword