fixed Resque_Exception not found in namespace CakeResque
fixed Resque_Exception not found in namespace CakeResque

Improved Exceptions messages:
- explicit being thrown by Resque_Job_Creator
- diffrentiate between file not found and class not found in file

Patched for cakePHP3:
- self::$rootFolder correctly points to src
- $model (shell class) is now properly namespaced (App\Shell)
- removed perform method search, replaced returning the method to invoke as well as the class instance as an array
- an array is now returned containing the class instance, the class method to invoke and the arguments to be passed to it

manierim/Cake-Resque,voycey/Cake-Resque,voycey/Cake-Resque,manierim/Cake-Resque