Added option for multiple model directories
Encapsulated return in {}
Added exception when relationship class is not found
composer file for packagist.org
added autoloader for the ActiveRecord namespace for composer.json
fixed issue when using namespaces, the original classname was replaced and so no namespace was present with the next model directory
Fixed issue caused by previous commit; now only extracting namespaces from classname once
Passes tests, issues with multiple directories resolved
removed var_dump