added Hahns::router()
renamed ServiceHolder to Services
added Hahns::services()
added \Hahns\Hahns as possible parameter for routing callbacks
added \Hahns\Config
improved last commit
Hahns is not longer chainable
added Hahns\Config as callable parameter
router in \Hahns will be loaded lazy now
config in \Hahns will be loaded lazy now
config in \Hahns will be loaded lazy now