Adds new dependencies and authors

Carbon (for dates), twig (for templating) and illuminate/database for
ORM and Migrations (eloquent).
Adds simple configuration class
Extends klein to support class based controllers

$router = new Modlist\Router();
$router->add('GET', '/version/[i:id]',
'Controllers\Version@getVersion');
$router->dispatch();
Adds basic templating with Twig
Adds database connection
Adds database and mods installer
Adds basic controller example
Merge pull request #582 from citricsquid/database

initial steps towards database driven version of site