Added the Composer autoloader. Relates to #11
Added the Composer autoloader. Relates to #11

TituxMetal/CakePHP3-Proffer,hiromi2424/CakePHP3-Proffer,srubengt/CakePHP3-Proffer,davidyell/CakePHP3-Proffer,Kamoris/CakePHP3-Proffer