Generators

Created generators for job types:
- Synchronous
- Container aware
- Throttled
- Loner

Based on the [Controller generator on the Symfony 2.2 branch](https://github.com/sensio/SensioGeneratorBundle/blob/2.2/Generator/ControllerGenerator.php)

Note: The generators in master now extend from the [Generator](https://github.com/sensio/SensioGeneratorBundle/blob/master/Generator/Generator.php) class, which will allow to remove some code from the JobGenerator class when upgrading versions.


The generator allows to send all the information in one command:

    php app/console resque:generate:job --job=AcmeDemoBundle:SendEmail --job-type=loner --no-interaction

Or run `php app/console resque:generate:job` and fill the information interactively:

![image](https://f.cloud.github.com/assets/4226583/417542/17c202ac-ac6e-11e2-88fa-6ad5b5e000b3.png)